I've bought a couple of Ford books and from what I've read, I'm right on the edge of 650dp to 750dp. When you read the mag articles they use 750 and in the books they say 650. Even when trying to sell my holley I have a couple guys asking me if the 650 would work on the 350.
I know that mods play a role in choosing the right carb, so I've got a new 347 on the stand with heavy ported Edel Perf RPM heads, Dual plane Edel Perf RPM intake, 10.2CR, 1.6 rr, 218/228 545/545 cam, all MSD and equal shorties.
If I do stick with the 650, I'd have to rejet, right now I've got 70 mains and 78 second, I don't recall what squirts I have but I'd think have to go bigger.
I think maybe 74-75 main and 86-87 seconds?
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