Clink69

Well the engines nearly done and I have to make a choice on Intake. I have gone thru all the previous posts and it seems there is a concensus that an RPM or RPM AIR won't fit in my 69 SB hood. So accepting that here are the possibilities that I think will fit.

Which is best for general street use and some ET runs. I want power !!!(or any other suggestions for intakes)

Dual Plane:

Edel Performer 2101

Performer Air Gap 2601

Weiand Action Plus 8000 or 8004

Single Plane:

Edel Torker II 5001

Weiand Team G 7525 or 7530

This is for a 383 CR = 10:1 , Cam = XE274H, Canfield 195 Alum heads, headers, sidepipes, 3.36 rear end
Oh yea Holley 750 carb...


:flag


[Modified by Clink69, 7:57 PM 11/27/2001]

gearheadz

I went through the same dilemma. I needed a decent flowing intake but choices were restricted by the very low original hood. Any of the dual planes that fit under would choke the engines output. Any single plane could impact low end response & torque (3.36 rear). Car & engine-wise (cam, heads, etc) our situations are similar.

I chose the RPM Air Gap & an L88 hood. I figured why assemble all the best components for optimizing HP/TQ and then screw up the whole equation with a weak intake? The dual planes you listed will choke above 5K so your cam and heads are severely restricted and almost negated. So if I had to choose from your list, I would go with the Torker II. Although you may give up some low end, the extra cubes & inherent torque of the 383 should compensate. Also, you didn't mention rearend ratio. A 3.70 or above would be preferable with a single plane intake.

Mark


[Modified by mdsmith, 7:38 PM 11/27/2001]

xrated

Facing same dilema. For my money id go torkerII. A stout 383 should have enough torque to compensate for the single plane manifold. ANyway the TorquerII is not highrise and its pretty much a baby single. I think youll be fine. We r not talking Victor Jr. or anything.

nunus79

Too bad I haven't had the time to install my Weiand 7525 yet. I could've then given you some impressions. Chris A just got his 383 running w/the 7525. Hopefully he can fill you in. There are some good things said about the 7525 in David Vizard's hotrod books.

Nomad78SA

On my 388 motor buid up, I went with the Performer Air Gap design. I crank it up in the garage and run the motor and the throttle response is awesome. The tires will be history. From the way this motor sounds, the tires will boil!

Blake-73

Performer Air Gap might fit stock L-48 hood. RPM Air Gap will not.

Here are the specs: http://www.edelbrock.com/automotive/index.html

dman535

I run a Weiand Stealth and it fits under the stock hood without a problem. No power problems up to 6500 rpm, good low end response.

gearheadz

I wish the later model C3 guys would remember that their hoods have more clearance than early model C3s. :rolleyes: The Stealth is waaaayyy too high.

Mark

Matt Gruber

the 8004 flows much more than the 2101 (i have both) assuming 6500 max., get the 8004
BUT
check each runner! 1 or 2 of mine was smaller due to casting shift. took about 1-2 hours to open up. Considering the low price, i found that acceptable.

jeffs

I run the Wieand 7525 with a 750 Speed Demon and a 3/8 heat spacer with a 3x14 K&N drop base on my 406. I also have the XE274H Comp cam. I have 1/8 in hood clearance. The Speed deman's 4-corner idle adjust and great off-idle response really tames down the single plane intake and cam. It really pulls nice between 3 and 6K. With limited miles on new motor, I don't go past 6K at this time, but it feels like it could go into the high 6K range still strong. I want to try the 7460 plenum divider next but the 3.73 gear swap and TRW mono-spring (sitting in garage) comes first. The new gears will get the moter up into that great power band much quicker. Should be fun.

Jeffs

Red73

I current have an Air Gap but I'm thinking of switching to the Weiand Team "G". Jeffs, You'll like the 3.73s with your combo. If I was to do it again I would go with 3.90s. Rod

:cheers:

BeaterShark

Clink, here are my thoughts:
I went with the Weinad Team G 7525 and run it with my Q-Jet carb. I did run it on my stock 350 for about 6 months before I pulled it. I did not notice any major decrease in low end torque. There may have been a little, but that could have just been in my head, I dunno. I was also influenced by David Vizard's comments about this manifold.

I do have my 383 running fairly good now, although I don't have much total timing (I need to get a HEI kit from Lars) and my secondaries are only opening about 1/2 way under WOT. Still, at 3 grand, it pulls like crazy and is still solid at lower RPMs. I have yet to bring the engine over 4500 RPM, so I'm sure I'm not yet seeing the full potential of this manifold.

One thing to watch out for is that this manifold matches up to the Fel Pro 1204 gasket. Be sure to check the port size of the heads to make sure they match. Mine don't, but that is for another topic.

I would suggest going with a single plane manifold. The 383 should be producing enough torque to overcome the low RPM limitations (if any). Besides, I'm almost never below 2000 RPM anyway

If I would have decided to go with a square bore carb for my 383, I would have gone with the 7530 manifold. This is an air-gapped manifold and it is matched to a Fel Pro 1205 gasket (which would match my AFR 195 heads). I may end up switching to this manifold and running a spread bore carb adapter and a 2.5" filter element.

Xracer

Rod,

Why a Team -G?

Joe

Lohkay

I had the torker II intake and it made power from 2500+ which isn't bad..especially if you have a stick.