Cam for 440 street build

[TrackPack]

First thing is lose the pistons and build a quench motor, I did and its a beast. 915 heads ported/polished, light weight JE/SRP pistons, Mopar .528 Mech Cam, 6 pack setup, perfect .040 quench with .020. steel shim gasket. 520 HP on pump gas with dyno headers.

I'm guessing that's a bit over 10.5:1 with the 915's. Does that cam duration/overlap bleed off a bunch of compression?

 

[68-500]

That would work, but I think the block deck and heads would have to be surfaced for the mls gasket.

Here’s what I wonder about; if a uncoated steel shim gasket can seal deck to cylinder head with factory machined surface. Why can’t a coated with some fancy sealer mls gasket can’t do the same?