Engine is a 30 over high compression 68 400 with the unported cast iron 16 heads and a Crower 60916 degreed to 107-108icl.
I have no information of the deck height or quench other than it has flat top pistons and a 3 angle valve job.
After some fine tuning of the idle mixtures, it's pulling 18-19" vacuum at 950rpm (14" in drive, 620 rpm) all heat soaked.
-180 thermostat and a 2 row aluminum radiator with 1" tubes
-spark plugs are ngk 5670-6
-exhaust crossover to the intake is blocked with plates in the gasket kit (no more burning paint)
-total timing is about 34-35 at 3000 (initial is about 14, vacuum advance is a VC 302 Unit on ported vacuum so that adds another 10-12 to the total at cruise)
-carter 4852s with 73/43 primary and DF secondary rod.
-ram air manifolds with 2.5" x type exhaust.
Asking since it's much harder to find the high octane stuff in the new area but seems to be doing fine on 93 however.
