Maybe newbie questions, but it's first time a building an engine from scratch. Mine is a 347 stroker, will be CARB but need advices.
If I will be using AFR 185 heads, which carb do you recommend? I am currently looking at HOLLEY Double Pumper, 650 or 700? Also, which INTAKE should be good for my setup? An Edelbrock RMP Air Gap or Victor Jr?
FFR 3378 - 503 BB, $old and missed
RCR GT40 - 1051P clone, $old
FFR 7991 - becoming a 289 FIA with a Mr. Bruce body, 331, Webers, T-5, IRS, Vintage Wheels pin drive wheels, and Goodyear billboards http://www.bills289fia.com
A lot depends on your camshaft choice - but since you will be spending most of your time on the street, an Edelbrock RPM Air-Gap Performer with a Holley 770cfm Street Avenger would be the best street combo.
I am building a 347 too. I chose the Edlebrock Performer RPM and a Holley 650 DP, to go along with my Trick Flow Track Heat 190 heads and TF stage 2 cam. I can't wait to get it built. My car will be street driven more than 95% of the time so I chose parts for that RPM range rather than max power or top end power.
Still building. One day I just might get to drive it...
From your comments, a dual plane like RPM Air gap seems to be the choice. If I go bigger with a 750CFM DB, will I see a noticeable performance increase compared to a 650CFM DB or will it just be worst on gas mileage?
My stroker is currently builded with a COMP CAMS Xtreme Energy 35-425-8
there will be a noticeable difference in power, i've switched between a 650 & 750 on a 351 crate engine and it is definitely noticeable. i also switched from a vic jr intake to the rpm air gap and liked the air gap much better, this was on a 351 crate engine btw.
gas mileage shouldn't change a whole lot if any i wouldn't think. you'll be running on two barrels cruising.
Thanks for your good advice. My final choice will then be:
- Edelbrock RPM Air Gap Manifold
- 750 DP Carb, probably Holley 0-4779
Good choices, but I like the 650 carb better on a street car. My last 347 it dyno'ed at ~410 rwhp with a mighty demon 650... My current racecar dyno'ed this past Saturday (342, Canfield 195 heads, very small levy racing camshaft, RPM airgap intake, mighty demon 650 carb) at 360rwhp, 365rwtq. The smaller carb will be a bit easier to tune....
Just my experience fwiw....
MkIII, 351W with all the fixin\'s...
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