WebJan 3, 2010 · Re: who is are holley experts? I got a 780 question Somebody pieced that together. 3310-3 is the third version of the common 750/780 vacuum secondary carb. It would have originally had a metering plate in the back with fixed jetting, instead of a metering block that accepts screw in jets, and the vac. secondary carbs never had a rear … WebOct 8, 2024 · I am trying to dial in my holley 3310 on a 30 over 396 with builder forged …
who is are holley experts? I got a 780 question
WebJets, Carburetor, Holley, #72, Pair. Two per package. Fits 1982 Buick Grand National, … WebHolley explains how the main jets on a four-barrel carburetor operate. They also give instructions on changing the jets for increased performance. The video ... comfort keepers of marietta
Holley jetting vs. altitude Team Chevelle
WebAug 9, 2024 · For a 750 normally the primary jet is about a 70 or 72 and the rear if it has a metering block to take jets it will be about 76 to 80. There is always a 6 to 10 size difference in jetting between primary and secondary since the secondary side does not have a power valve. ... If your holley is the vacuum secondary 3310 manual choke version or ... WebSep 1, 2013 · The QTF jets have about a 15* tapper on the inlet side were the Holley jet is flat. the QTF jet on the exit side is tapered as well maybe 20* were again the Holley is flat, I have a Holley 72 for measuring and both the Holley and QTF jets measure 0.070' within 0.001. I'm thinking Holley and QFT jets are not strait up comparable. WebHolley Jet # 72 Replaces Holley part # 122-72 Orifice Size: .079" Quantity: 2 Jets Jet Thread: 1/4"-32 Jet Body Diameter: 3/8" (.375") Jet Overall Height: .350" Fits: Ford 2100 carburetors (early style) Ford 4100 carburetors (early style) Holley 1904 carburetors Holley 1920 carburetors Holley 1945 carburetors Holley 1946 carburetors Holley 2010 ... dr william bryceson cairns