Originally Posted by wayneair
ok i like lokars kit but i'll still need a place to connect it to on the the carb
Yup, I like that one too. (thanks 30Desoto
I think you'll need to shop around for another parts carb ... at the auto wreckers or at a swap meet or something. You'll need to find a used carb that has the correct primary throttle shaft. You'll have to make sure that it has the same lower linkage as well as the same butterfly size.
I dunno, guy ... maybe you just plain need a different carb. Trade someone your double-pumper for a vaccuum-secondary carb with the correct linkage? As I mentioned earlier, popular opinion says a VS carb is better suited to an automatic. You CAN buy a "trick kit" containing a selection of secondary springs, so that you can "tailor" the opening rate of the secondaries.
My experience (with a 3310 -- 750/780 cfm on a 351C Ford) was that the purple spring was the "ticket". The secondaries were coming in at around 2500 RPM and were fully open by about 3200 ... right in the power band.
I had originally been running an 1850 (600 cfm) with the default black spring. The secondaries didn't open until around 4500 -- even with that smaller carb -- and it was crying for more air/fuel! You could sure feel it when they finally opened though!
To top it all off (if this is a street mchine) I'd almost guarantee you that you'll get better mileage with ONE accelerator pump rather than TWO. Less bog, too, unless you're driving something real light with low gearing.
Good luck with whatever you decide.