1. steering arm holes (stock bolt hole is 7/16) you need to ream them to 1/2.

2.This is important; this needs to be done on a bench vise. Pickup an inexpensive one at a harbor freight tools or sears! Without doing this you will always have a spongy brake pedal if you do it on the car. You need to make sure you can fully depress the piston.

3. The Booster pin in a DEEP bore master is going to be the long pin, In a shallow bole master it is going to be the short pin. The space between the master and the booster pin does not want to pre-load (Pre engage) You want a 1/32-1/16" gap between the two.

Easy as that! Feel free to email/call with any questions