[82ACAUTOCRAFT]

My other car has a 428 Cobra Jet engine in stock form! It's a 69 motor with approx. 28,000 miles. The problem is detonation with the stock heads. (I do not not want to keep on spending $5.00 a gallon for 100 octane gas) I have bought a ford police interceptor aluminum manifold that will go on it eventually. The car has a C6 auto box. I want to be able to drive the car long distance to club meets etc. My engine builder told me that I should get rid of the stock iron heads a put a set of 72cc Edelbrock. I will change the cam to wake up the motor as well! My questions is: Roller hydraulic or flat hydraulic? I want to stay with hydraulic, I want a very reliable motor, with very good idle and low end power. I will keep the Holley 730cfm and the vacum advanced distributor, the only sacrifice to originality will be: Edelbrock water pump, Edelbrock heads and a set of custom headers! What do you think? I think I might be able to get around 400hp that way, is it realistic? Should I port the heads and manifold? any comment appreciated!