X-Head Porting....

Wow I commend your efforts! things you are learning are somewhat of a lost art except for the old farts that hang around here LOL. when I ported my X heads I wore out two Chicago heavy duty electric grinders just cleaning up transitions pushrod pinch casting marks and focusing on exhaust ports.I had the same problem just didn't have enough compressor to support a good pneumatic tool. The good thing is once you get finished with those cast heads aluminum head will seem like a gift from heaven. Keep up the good work.