carb ???

[jr2012]

can someone help ?? i have a 1962 buick 401 nailhead will new topend ta-112 cam & lifters pushrods.timing chain and gears
new set of rockers setup.going from a 2bbl to 4bbl what carb will be the best,and would like to run my stock linage and passing gear
i have a stock 4bl cast intake manifold ,thanks Rich

[nailheadnut]

Some of what you're requesting will depend on what you want to do about the air cleaner. The original AFB's have a smaller opening than the aftermarket ones. The kickdown linkage for your transmission (if you have the original Dynaflow) is mechanical. The easiest thing to do would to be to find an AFB from a 59 - 63 engine; your stock aircleaner will fit. Another option would be to use an aftermarket AFB and fit an OE top to it; this will also allow you to run the original air cleaner. If the air cleaner is not part of the equation, you can run any square bolt carb. Nailheads like lots of carburetion so anything up to 750 cfm would suffice. The original AFB was 625 cfm. At least you're not messing with the accelerator start found on earlier models.

Ed

[jr2012]

i don't want to run stock air cleaner.i pickup a carb on ebay it a carter afb 3503 that for 60 to 62 buick and i found a rochester 60 62 buick.what one would you run ? and can i run a after market air cleaner on them?thank Rich