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Search: Posts Made By: American Boy
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Forum: C3 Tech/Performance
11-16-2008, 11:27 PM
Replies: 16
Views: 1,252
Posted By American Boy

I dyno'd it at 314 with the performer intake dual...

I dyno'd it at 314 with the performer intake dual plane. With the super victor, I gain some hp but I could'nt test it yet. I guess around 25-30 hp at the crank so that's why I think I should have...
Forum: C3 Tech/Performance
11-16-2008, 05:21 PM
Replies: 16
Views: 1,252
Posted By American Boy

Here's my recipe for 400 hp daily driver. A...

Here's my recipe for 400 hp daily driver.

A 350 97 vortec block (has roller cam)
XR-270 comp cam
Vortec Heads ported
Quadra-jet fine tuned
Msd 6al box
Performance timing advance curve with...
Forum: C3 Tech/Performance
11-16-2008, 05:07 PM
Replies: 19
Views: 782
Posted By American Boy

Don't worry too much about that intake, I did 300...

Don't worry too much about that intake, I did 300 rwhp with one of those.

As you know, you need a better cam. Something like a comp cam XE-262 since you're compression is close to 9 to 1 would...
Forum: C3 Tech/Performance
08-15-2008, 09:49 PM
Replies: 15
Views: 17,492
Posted By American Boy

Say Hi to Jeff. I had the chance to meet him at...

Say Hi to Jeff. I had the chance to meet him at the Real Street Eliminator. Really nice people.

That particular article was the inspiration for my engine. The only difference would be the...
Forum: C3 Tech/Performance
07-20-2008, 09:53 AM
Replies: 8
Views: 5,223
Posted By American Boy

Actually if you look at the Edelbrock site, the...

Actually if you look at the Edelbrock site, the air gap manifold have the same carburator pad height. I'ts the bottom of the intake that is lower giving a wrong impression.

I ran my stock dual...
Forum: C3 Tech/Performance
07-15-2008, 12:15 PM
Replies: 3
Views: 387
Posted By American Boy

You need to find a 1978-79 speedo. They are...

You need to find a 1978-79 speedo. They are direct fit and have a 140 mph top speed.

Otherwise 85 mph is a bit slow in the quarter mile. :crazy:

Stephan
Forum: C3 Tech/Performance
04-19-2008, 02:32 PM
Replies: 8
Views: 29,463
Posted By American Boy

I run Vortec head that have the kidney shape...

I run Vortec head that have the kidney shape combustion chamber and I run 13 to 1 with 34 degrees timing at WOT. If you have older style combustion chamber, it should be around 12.5 to 1 with 36...
Forum: C3 Tech/Performance
03-24-2008, 08:27 AM
Replies: 11
Views: 881
Posted By American Boy

It's all about a question of taste. You could...

It's all about a question of taste. You could make all 4 barrel carburator to perform...as long as you tune them right.

For my part, I love my Q-jet because it fits well with what I do with the...
Forum: C3 Tech/Performance
03-16-2008, 10:11 AM
Replies: 6
Views: 933
Posted By American Boy

You need to loosen the allen locking screw and...

You need to loosen the allen locking screw and put a screw driver in the adjustement. Then turn it until the spring get in contact with the pin (when the carb is in the car, a little mirror does the...
Forum: C3 Tech/Performance
03-09-2008, 04:28 PM
Replies: 19
Views: 1,317
Posted By American Boy

I didn't saw that aricle. They did an article in...

I didn't saw that aricle. They did an article in the Chevy hi-performance mag a couple of years ago about a vortec head based small block. They tried the Performer RPM and the Super-Victor and...
Forum: C3 Tech/Performance
03-09-2008, 02:55 PM
Replies: 19
Views: 1,317
Posted By American Boy

Matt For now, I'll try it as it is but I'll...

Matt
For now, I'll try it as it is but I'll fine tune it later if necessary. My friend Cutlass has the same intake for oldmobile and he run a conical spacer at the bottom of the plenum. It...
Forum: C3 Tech/Performance
03-08-2008, 10:55 AM
Replies: 19
Views: 1,317
Posted By American Boy

My point is that the Q-jet as no problem feeding...

My point is that the Q-jet as no problem feeding 600 hp so my poor 400-420 hp won't be a problem. The performance industry seems to forget about a Q-jet being a performance carb.

I like that...
Forum: C3 Tech/Performance
03-07-2008, 08:55 PM
Replies: 19
Views: 1,317
Posted By American Boy

My other option was to take a standard Victor Jr...

My other option was to take a standard Victor Jr (correct height of the carb pad for my application) and to fit the port on the head and the Q-jet on top. It would have been a lot of work to align...
Forum: C3 Tech/Performance
03-07-2008, 08:45 PM
Replies: 19
Views: 1,317
Posted By American Boy

For my engine and car set up (manual tranny 3.30...

For my engine and car set up (manual tranny 3.30 1st gear ratio and 3.73 rear), the single plane intake was the step forward. I have too much torque for the peak hp so a single plane will level it....
Forum: C3 Tech/Performance
03-07-2008, 03:43 PM
Replies: 19
Views: 1,317
Posted By American Boy

Well, it's all about flow. My vortec heads flow...

Well, it's all about flow. My vortec heads flow 242 @ 0.500 lift and they pump more air than my performer can give. The Super victor will be a bit overkill and will maybe penalise a little at lower...
Forum: C3 Tech/Performance
03-07-2008, 03:33 PM
Replies: 19
Views: 1,317
Posted By American Boy

427 hot rod I'll be very conservative on the...

427 hot rod

I'll be very conservative on the plenum area. I want to make place for the throtle blade lowering the divider and I'll make a smooth radius on top of them.

Matt,

I'll go to my...
Forum: C3 Tech/Performance
03-07-2008, 12:21 PM
Replies: 19
Views: 1,317
Posted By American Boy

Vortec Super-Victor **JR** intake for Q-jet

After searching for an single plane intake that would fit my stock air-cleaner, hood and Q-jet without result, I decided to modify the super victor vortec. I found a good aluminium welder and he did...
Forum: C3 Tech/Performance
03-04-2008, 01:08 PM
Replies: 19
Views: 1,012
Posted By American Boy

How about your engine? Is it stock? ...

How about your engine? Is it stock?

Anyway, I ran 3.54 and 3.73 with a tremec 5 speed and I love my 3.73. I didn't find big difference in MPG bethween the two ratio but the acceleration is a...
Forum: C3 Tech/Performance
02-29-2008, 02:52 PM
Replies: 19
Views: 1,003
Posted By American Boy

The 400 has bigger bore and bigger stroke. That...

The 400 has bigger bore and bigger stroke. That translate in more low end torque and less rpm to get the same hp (or more hp for the same rpm). I ran the two type of engine in a 3800 lbs camaro and...
Forum: C3 Tech/Performance
02-26-2008, 12:47 PM
Replies: 17
Views: 2,996
Posted By American Boy

I love my TKO-500 and 3.73 rear gear. I do 21...

I love my TKO-500 and 3.73 rear gear. I do 21 MPG on the highway so the secret for mpg is more in the tuning of the ignition and carb. If you still have the Q-jet, it's easier to obtain good MPG.
...
Forum: C3 Tech/Performance
02-26-2008, 12:25 PM
Replies: 16
Views: 7,018
Posted By American Boy

I found out that the bad reputation of those...

I found out that the bad reputation of those aluminium differential comes from bad aluminium casting. The 84 and up used almost the same design (Dana 44) with some improvement but have far better...
Forum: C3 Tech/Performance
02-22-2008, 12:30 PM
Replies: 46
Views: 3,766
Posted By American Boy

Not really. It's more between 15 to 20%...

Not really. It's more between 15 to 20% depending on the transmission (manual or auto) and everything it as to rotate.

I have 314 rwhp and it's suppose to have around 380hp to the engine.

My...
Forum: C3 Tech/Performance
02-16-2008, 09:15 AM
Replies: 5
Views: 359
Posted By American Boy

The yokes you are searching are the ones in the...

The yokes you are searching are the ones in the differential...sorry my mistake. Mines are the ones at the wheel side connecting with the wheel spindle. They make replacement for 1963 to 1979. The...
Forum: C3 Tech/Performance
02-15-2008, 01:12 PM
Replies: 5
Views: 359
Posted By American Boy

I'm searching for 2 side drive yokes at the...

I'm searching for 2 side drive yokes at the wheel.

1BAD80, did you bought new ones there? Or maybe some used ones. Mines are loose on my new spindle so I need new ones.

Stephan
Forum: C3 Tech/Performance
01-17-2008, 03:20 PM
Replies: 12
Views: 5,207
Posted By American Boy

There's no easy way to go overdrive but the 200r4...

There's no easy way to go overdrive but the 200r4 is the same lenght as the th-350. You can check BTO Overdrive for price and build up 200r4. As a bonus, the ratio are a little better than the 350...
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