how many cylinders do the front/back calipers have? also, whats the best way to get better braking from the rear cause they hardly help at all...

 

The stock LT1 f-body cars have 1-piston calipers, front and back. You can certainly upgrade the rears, but unless you've got serious brakes already on the front, I'd recommend doing them first. You can put some pretty serious brakes on the front (like 13" rotors, 4-piston calipers) before you need to address the back.

For low-buck improvements, get a good set of pads.

Dave