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
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
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...
Welcome to FFCars! The
representations expressed are the representations and opinions of
the FFCars.com forum members and do not necessarily reflect the
opinions and viewpoints of the site owners, moderators, Factory Five
Racing, Inc. or Ford Motor Company. This website
has been planned and developed by FFCars.com and its forum members
and should not be construed as being endorsed by Factory Five
Racing, Inc. or Ford Motor Company for any
purpose. "FFR", "Factory Five", "Factory Five Racing", and the
Factory Five Racing logo are registered trademarks of Factory Five
Racing, Inc. FFCars.com forum members agree not to
post any copyrighted material unless the copyrighted material is
owned by you. Although we do not and cannot review the messages
posted and are not responsible for the content of any of these
messages, we reserve the right to delete any message for any reason
whatsoever. You remain solely responsible for the content of your
messages, and you agree to indemnify and hold us harmless with
respect to any claim based upon transmission of your message(s).
Thank you for visiting the FFCars.com Forum dedicated to Factory