Hello,

I know I'm on the edge of a streetable engine with that combo and I'm currently wondering if it would run with 100 Octane (European Octane) = 95 US Octane:

440=500cui Stroker
6.76 rods, 4.15 Stroke
KB826 40 over pistons 4.5cc Volume
Zero deck
440source Heads OOTB = 82cc
0.039 head gasket
Stock Rockers (with apps. less than 1.5 ratio)
HUG SEH5660BL-8
This ends up with 11,4 static compression and 9.2 dynamic compression.
I've submitted the question to Hughes as well but want to gather as much possible answers.

Cam specs: