I was able to scrounge up an old Holley 4367, which is the correct factory carb for my 70 383 Cuda with manual trans. These carbs are 4160 models, but unlike the current 4150/4160 Holley carbs, they have different sized primary and secondary throttle bores. The primaries are 1-9/16" and the secondaries are 1-3/4".
At the moment, I'm trying to find a rebuild kit to freshen this one up. However, I'm not having much luck. Holley's website doesn't recognize the 4367 list number. I've found a few places online that reference use of a Holley 3-337 kit for this carb; however, that kit no longer seems to be available.
Anybody here have some experience rebuilding these old factory carbs, and if so, what are you using for parts? I was thinking that a current rebuild kit for a 600 cfm 4160 might have most of the parts I need, but the carb gasket and throttle body gasket would need to be modified for the larger secondary throttle blades.
Thank you
