Stopping the knock: Lower compression and ported heads...

Frankenduster said

To recap:

Bore size: 4.35 .
Stroke: 4.15.
Head chamber: 84 ccs
Head gasket bore: 4.410
Head gasket thickness: .039
Piston @ TDC: .017 below deck
Piston valve notch: 6 ccs
These numbers give me a 10.7 ratio according to the online CR calculators that I have tried.
The dynamic comes in at 8.09 according to another source.
Does quench make up for increased cylinder pressure and a jump in the dynamic ratio? The .027 Cometic puts me at .044 quench but puts my dynamic at almost 8.3. Since my cranking #s were already above 190, how could quench save me if the cranking comp goes to 195 or 200?

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Was the block honed with a torque plate?
Looks like it may be sucking some oil thru the guides too.
Was the cam degreed and actually verified intake and exhaust lobes are what they are suppose to be?
With your numbers I also get 10.7:1 CR, but cranking should only be 177 lbs at most. Your dynamic is 9.08, not 8.0 with that cam in at 106.
If you had 1cc of carbon buildup in there it would be pretty bad looking. That's not changing your CR enough to matter.
I don't see 190 lbs on pump gas being a problem either. I can however see your ignition causing issues.
Personally I highly recommend putting it on a dyno with someone that has good tuning knowledge.