Did it go from having no quench to a real quench area with the milling? If so, I'd think that would have something to do with it needing less ignition lead.
Did the BSFC numbers improve, too?
This is what I was getting at. .040 compressed head gasket?
Just looked and saw RAMM got a 6% increase, much higher than the Vizard chart I posted predicted. I suspect he found some "bonus points" by building quench into it, too.
Well, RAMM?
I think that being he cut the deck to gain the point he made the
chamber more efficient over what it was.. that might give him the
higher % increase AND the lack of timing.. which the lack of timing
is efficiency
