e3pres

I'm about to buy a carburetor. I've heard good things about both the Street Avenger as well as the Road Demon. Which would you suggest and why. BTW this is going on a 350 with an XE268H, Edelbrock Performer Intake, and Headers. I'm looking at the 650/670 cfm models.

TIA,

79VetteMike

Good poll. I have the exact same question.

verskel

I'm voting Road Demon just because recently I haven't had much luck with the Holleys being great performers. They'll get the job done but it seems like the Demons always do a little better in the performance category (probably because of the nice smooth venturis).

Have you thought about spending a few more $$$ for a Street Demon ?


[Modified by verskel, 4:09 PM 4/23/2004]

TTop Tony

I loved my street avanger. I still have it. I couldn't get the road demon to idle so I sold it. Probably something i was doing. if you so get a demon carb call there support line and they can tell you which one to use for your carb.

1979toy

Tell us more about your setup. My choice would be with the Speed Demon if you are inclined toward performance and don't mind a bit of tuning. My last engine had a Holley Street Avenger and I was quite pleased with it....until I tried a Speed Demon!

Corey_68

Here's my take:

Speed Demon - Weekend Toy

Street Avenger - Daily Driver

e3pres

I ended up going with the Street Avenger. I picked it up today. Hopefully I'll put it on this week. I'll be sure to give a full report.

GTR1999

Keep us posted. I have a new 670 SA ready to bolt on to a L-82 with Xe268 cam, WP Sportsman heads,RPM intake,headers,etc.

You should do a search to find Lars post on carbs,he said to check the throttle plates on new carbs because they aren't set right from the factory.

Gary

Eddie 70

I have the 670 SA on mine. So far so good. The car fired right up and ran good. I had to adjust the idle speed down though. I need to check into that part about throttle plates.

e3pres

Did Bob make you buy one too? :lol:

Eddie 70

I wound up buying it own my own just because of what I had read on here. I didn't even know Bob at that time.

Did you get yours installed? And how is it working?

e3pres

I don't have it installed yet. I'm trying to finish up school here in Cookeville and my car is in Chattanooga. :cry I'm hoping to get down there this week to put it on, but I may not get to.

lostpatrolman

If your avenger came with the clear sight plugs, I would recommend taking them off. After about a year, they get hard and break. The head will either twist off if you are trying to take it off, or it will just fall off on its own. This leaves the threaded part in the carb still. Since the head had the gasket part on it, some leaking of gas could also occur.

69schemers

I have heard that if you want all out performance, run the Demon. I have also heard from several people that the Demon runs rich at low RPM's. Not somthing you would want if you are cruising down the highway in overdrive.

If your not racing, get the Street Avenger