Added Speed-Prop L-2465F piston number to first posts.
Last night i pulled the plugs and performed cranking compression then leakdown. The results surprised me as this is quite tight.
#1 compression 198 leakdown 2%
2 190 2%
3 195 2%
4 195 2%
5 185 2.5%
6 195 2%
7 187 3%
8 192 2%


Engine idles @ 60KPA vacuum 20 degrees advance @ idles seems perfect.

No I haven't tried Race Gas.

Not sure of next move....Try an HEI distributor temporarily or a cam swap. I'm thinking about boring and lowering compression but will not make this same mistake twice.
Lead me on Gents...Open ears here. If nothing else it sounds like my cam choice is poor huh?

Thanks, John