Drilling my Zbar??

Slow down and do your homework. The more you mess around doing it the wrong way , the worse it's going to get. I would start with Post#2 as it is a proven improvement , then go from there . Maybe get the correct clutch rod next. Then maybe investigate Post#8 to see if you have the correct Bracket and spacer and get your Z bar straight. You'll be glad you did it right or if not you may hate it every time you go for a ride .