Cylinder Head Porting and Power Production

RAMM said

I don't even know who you are talking about but I bet the heads are welded/milled to feature a very small compact chamber for starters. I have also seen incorrect balancer markings and timing light errors and ive seen many that think they know how to read timing lights but really don't. I've also seen more than one small block Ford wearing a certain head that makes best power at 24 deg total. Do you know why a G3 head makes best power in the low 20,s sometimes 18,s? I do. J.Rob

Click to expand...

Here from the article I posted that you didn't bother to read:

"Those early applications demonstrated how well-managed tract turbulence accommodates extra-lean air/fuel mixtures, and how swirl can improve combustion quality to reduce a mixture's sensitivity to detonation. The more mixture activity that occurs, the better the fuel remains in suspension and the better the mixture burns. The faster a fuel burns, the less ignition timing is required to produce equal power. And because wet fuel doesn't burn, or burns unevenly at best, swirl helps create and maintain a fully atomized air/fuel mixture"

Its obvious he has a very efficient chamber and well vaporized mixture. To hazard a guess the flame front doesn't have far to travel to only need 28 degree. You don't burn the air and the better the mixture at time of ignition the more force is applied to the crank. Nothing to do with more air.