T here are at least two different primary metering block gaskets for a typical 4150 and many 4160-style Holley carburetors. We’ll use the very popular 600 cfm Holley vacuum secondary, commonly ...

Playing with old cars and carburetors means you must do a little ... needle and seat hardware kit HLY-34-7 Summit Racing Holley 4150/4160 needle and seat HLY-6-504 Summit Racing Summit 4150/ ...