I've been running a 77 on my F. Engine is bored over .010, stock cam etc... so no real improvements to the engine. I do have a 2F valve cover on it, however, with the 1F manifolds, the 2F aircleaner does not just bolt up. The manifold sets closer and lower than a 2F manifold, therefore the aircleaner is offset to the passenger side and lower. I had to shim under the head bracket and make new brackets on the vavle cover attachments.
Throttle for me right now, is the throttle cable housing end bolted to the air cleaner, coming into the passenger side of the throttle linkage where the pull of the cable would open the butterfly. Attachment is via a ball in a hole over there, and a hybrid adjustable link that accepts the barrel from the cable, and then hooks to the ball, with adjustment inbetween to take up slack and stretch in the cable.
I have the factory bellcrank assembly, now, but have not installed it yet. I think it will work on a 2F carb just fine, and simplifies the early throttle cable attachement.
Performance wise, much, much better than the Holley I had, far better off road of course. Consistent 15 MPG rain or shine. Still not dialed in 100% though. Could be that the carb is kind of worn in general.
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