Over the last few years I have pumped up my stock 330 hp 454's to about 425 hp. Cleaned up the heads and increased flow , changed the cam shaft , went 30 over on the bore , new pistions and bearing , rings and related hardware also put on aluminum intakes ( torker 2.0). My question is about carb jetting. I had the stock Q-jet carbs fattened up for fear of running lean but I think they over jetted. Does any body know what the stock jet setup primary and secondary is so I can base line the carbs . Thanks in advance.

Rick G.

go to mor- tec . They post all factory jet sizes.

Under which heading would I look. There seems to be a wealth of info. Thanks Boatman 747

Any other thoughts . I don't seem to be able to find the area on this web site that lists the jetting info for Q-Jets.

Rick G.

Dennis Moore's book on BB Chevy Marine Engines has a great section on Q-jets and all the info you are looking for.