I am reworking a 350 4bolt main and I am looking for maximum HP(300 +) but keeping it streetable. I am using stock chevy heads - 58cc (1.84 intake & 1.50 exhaust), a edlebrock performer manifold and a 600 cfm holly carb. My question is what is the best cam to use in terms of lift and duration. I will be using headers. Any help will be appreciated.