n8in8or
I never met a project I didn’t like
Hmmm that's interesting......and surprising.Regarding the port match, Mark 4 Big Block Chevies have standard oval and rectangular intake ports, the HP ports being much larger. Read up on a discussion recently where, just for the heck of it, a HP intake was dyno flogged with standard heads. The effect would be a serious mismatch, reversion and other silly stuff due to the larger manifold port size. The claimed result was that there were no problems and the performance exceeded expectations. Just sayin', not saying I'd do it.