Edelbrock 1407
Lead Driver
Joined: Jun 2013
Posts: 5,671
Likes: 1,163
From: Tolland, CT
Wow, that's a lot of CFM. Even with smaller jet's, it will not a lot of fun to drive, normally. Don't you have a automatic behind that 302 ?
If you would post the trucks info in your "sig" like a lot of us have done, that would help us give you better advice.
If you would post the trucks info in your "sig" like a lot of us have done, that would help us give you better advice.
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Cross-Country
Joined: Mar 2024
Posts: 58
Likes: 3
I’ve tried looking for the “sig” and can’t find it. Either way it’s a crate 302 on a 1985 f150 flareside.
Lead Driver
Joined: Jun 2013
Posts: 5,671
Likes: 1,163
From: Tolland, CT
In that blue bar across the top of the page, click on the down arrow next to your name, you'll see the Edit Sig there. Thanks,
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Cross-Country
Joined: Mar 2024
Posts: 58
Likes: 3
think I got it now
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Lead Driver
Joined: Jun 2013
Posts: 5,671
Likes: 1,163
From: Tolland, CT
That was easy 
You can get smaller jets for the carb, but it will still flow more than you need. It can work, but not ideal.
You can get smaller jets for the carb, but it will still flow more than you need. It can work, but not ideal.
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Brett Foote
FTE Legend
Joined: Nov 2015
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From: Angier, NC
Because of the large size throttle input will be sluggish making it a dog to drive.
I would not go bigger than a 650 CFM and closer to 600 CFM would be better.
FYI I ran a 650 CFM and 750 CFM on a 360 non Ford but a motor is a motor, in a 1/4 mile drag only car.
The 650 had a better off the line feel, the 750 was flat and had a bog I had a hard time to work out.
Top end speed and times where the same between the 2 carbs. If I was not so lazy and did more racing I would have put the 650 CFM back on.
Dave ----
I would not go bigger than a 650 CFM and closer to 600 CFM would be better.
FYI I ran a 650 CFM and 750 CFM on a 360 non Ford but a motor is a motor, in a 1/4 mile drag only car.
The 650 had a better off the line feel, the 750 was flat and had a bog I had a hard time to work out.
Top end speed and times where the same between the 2 carbs. If I was not so lazy and did more racing I would have put the 650 CFM back on.
Dave ----
Mountain Pass
Joined: Aug 2018
Posts: 127
Likes: 31
From: Livermore, CO
I am currently running a 600 CFM Holley on a 460. Ford 460's came with a 625 CFM Holleys from the factory. Using an appropriately sized carb makes tuning easier putting the part throttle slots in the right position with the throttle blades.
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