Pontiac Problems? Ask a Mechanic for Answers ASAP
the rockers are not adjustable the rockers are just torqued down to spec
if the head is not warped over @ .003 you can reuse them if they are warped more they need to be machined
usually using a dull scraper will clean up the surface or an air disc cleaner with an aluminum disc cleaner as you do NOT want to cut into the aluminum when cleaning the surface with an air cleaner disc tool or the scraper
and be SURE the push rods are in correctly 6 are long and 6 are short
the shorts are for the intake valves and the longs are for the exhaust valves
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how are you making out ?