How's it going, i have a 12a, streetported primaries, bridgeported secondaries. I'm going to be putting a Holley 600cfm double pumper on it an i wanted to know what the proper jetting should be. Car is NA right now but a plate kit will be installed in about a month (if that makes a difference). Any info on what jets to run in the carb will be greatly appreciated. Thanks

 

i have 59's in my holley 600. but its not a double pumper. i am running kinda rich. its stock port 12a. so i suggest starting with a 65 and work your way up from there.