Interesting information wild......

I am running a 446 with zero decked block with TRW 2295's. The dome was measured with fluid at I believe 8cc's, even though they are listed as 12cc's. I have Eddy 84 cc heads shaved .060 for about 74cc's, .610 lift cam with a lot of overlap and 270 duration- fast ramp Engle HV6. I had to notch the pistons for both intake and exhaust, and used in-head cutter for .120" clearance for us to get a bigger cam later....0.039 compressed gaskets 9 felpro.

Have run it about 2 hrs now,haven't seen above 6900 rpm , but the plugs haven't shown signs of contact with the piston domes... and those domes are notched for plug clearance.

Just more information for others reading this....I calculated our compression at 13.3:1 using somkem-up's website calculator.

Allen