To go on my Camaro. It's got a 305... Currently it has a Holley 750 which is wayyyyyy too big for it. It's got some backyard head work done, an edelbrock performer intake, and a thirsty cam. I am torn between getting a 600 or a 650 for it. I'm not looking to set any records with it as this is a daily driver, just something that will provide overall good power at all rpms.