Can some tell me how to rejet a carb, I have a holley 600 4-barrel. Thanks

 

first you should make sure it needs to be rejeted. Does it surge at cruise? Do you have some drivability problems?


The jets on holleys are directly inside the bowls behing the metering blocks. you need metering block gaskets and bowl gaskets. But, you also need to know what size are in there to decide which jets to buy.