I am in the process of building a turbo charged mustang. i am going with a 9.5deck dart block, but i'm wanting some input on the c.i. size.... the heads i have are TRS-R that flow in the 370 range @ .700. My goal is to make in the 1g range to the rear wheels. i'm thinking pt91 for the turbo with an a/w cooler??? i'm just stumped because i've heard so many different opinions on big bore turbo motors when it comes to cylinder deflection... any input would be greatly appreciated...i was thinkin in the 393-418 range???