302 Edelbrock carb question

[Scott e]

Hi Guys

I have a 750 Edelbrock Carb. My engine is pretty much a stock 302. I did the math on the engine and it appears that a 650 is big enough. Can the 750 be jetted down far enough for this engine? Got this carb sitting here and would like to use it.
Thanks.

[Jim1855]

No. Jetting changes the air/fuel mix. What you'll probably need is less airflow, less CFM.
You should be able to make it work but a smaller carb will be better to drive.
But I know nothing about Edelbrock carbs.
Jim

[J R Jones]

Scott, A 750CFM carb can work with a 302. The original 260/289 Cobras and Shelbys ran 715 Holleys but with performance cams and headers.
The potential downside of large venturis is weak airspeed/vacuum at idle and low speed, leading to poor siphoning of fuel (poor signal).
The Edelbrock 1411 has staggered venturis with smaller primaries, that are forgiving in this situation. The progression to opening the secondaries should be regulated by vacuum which is OK. If the secondaries are mechanical do not set them up to open too early. Jetting is jetting and should be doable especially with the 1411, but maybe too technical for a first timer.
jim

[Ford & Jeep Fan]

There is a good reason Edlebrock sells a 500, 600 and 750 Cfm carbs with and also sell jet kits for each CFM range. The jet kits for the Edlebrocks are Very user friendly. There is a book that even comes with a graph. they only have one gasket,......
But you are correct the car will be easier to drive and probably get better mpg with a smaller carb.

[lasse2]

I've run Edelbrock carburetors on multiple engines over the last 20+ years and had great luck with them. At car shows, I run into plenty of people who talk trash but I've had great luck. My '67 Galaxie with 390 starts up on a cold or hot day nearly as well as a fuel injected vehicle, idles well and has great driveability/throttle response. I run a 600 CFM carb on the 390 with no issues. The formula I memorized many years ago to size a carb is Cubic Inches x Max RPM / 3456. If your 302 has a 6000 RPM redline, you would theoretically be good with a 524 CFM carb.