I have a stupid but simple question. Ijust replaced the cam rockers lifters Etc... on my firebird,and dont know exactly what the right height on the lifters should be. Someone told me to get the lifters flush with the block then set the rocker arms but others said no. If anyone could give me a crash coarse on setting everything up including how to set the lash on the pushrod I would greatly appreciated. Still a beginner so any info is helpful

Not to sound smitten, but use the search function for setting valves and you'll be an expert by the time your done reading.

LOOOOTS of info on this subject already.

The terms "valve lash" in the search box..