Thanks MBHD and Drew.
I think I'll just smooth out the sharp edges as you suggest Hank.
Drew..this is the f-head 161 Willys motor. The exhaust valves/ports are in the block like a flat head. The intake valves and ports are in the head. The six cylinder (mine) was an integral intake cast into the head. I've machined the side off of that to open it so I can install a simple plate/manifold for two side draft carbs. I've been smoothing out the lumps and bumps in the plenum area and rounding the shoulders off of the air passages into the combustion chambers. There were a couple of 90 degree corners and also "L" shaped steps in there.
Thanks for the replys:
Paul..aka Xerxes
