My plan is 10.5-1 compression and the Comp Cams big Mutha Thumpr hyd roller cam. Duration intake 243@50, Exhaust 257@50, lift intake .533, exhaust .519. LSA 107. with 1.6 roller rockers = intake .568 and exhaust .553. KB flat top pistons, a tunnel ram manifold and either 2 x 450cfm - 2 x 600cfm carbs.