I am going to be running a 92 351w block bored 30 over with stock crank, stock rods, and forged pistons. It is going to have 9.5:1 compression and i have a set of gt40p's with over sized valves. What ratio roller rockers am I going to want to run, 1.6 or 1.7 roller rockers? Cam and springs are going to be based on this decision