I am building a 383 now, all forged bottom end, Trick Flow 195's and am going to put either a D1 or F1 on it with around 16-20PSI.

My original plan was to do a single plane intake, but the heads I bought were not drilled to a SBC pattern like they were supposed to be. So now, I don't know whether to go ahead with the single plane or just slap on a LT1 style intake.

Wanting to make over 700 at the wheels.

What do you guys think?

 

single plane doesnt have much gain until higher RPMS, personally i would stick to the LT1 manifold and just get one ported.

 

+1. SP doesn't help any unless you spend most of your time over 6200 rpm, which also requires a solid roller.