he said the head was rebuilt a few weeks ago (hes in the process of sending me reciepts) and the rest had about 65k on it.

now, when asking for receipts, what all should i ask for?

and, i dont know much info on the following:
"SUPERTECH FLat top valves
SUPERTECH 70lb dual valve springs
SUPERTECH titanium retainers
3 angle valve job
milled .004"

could someone explain what this does to the engine or give me a link that would explain it. thats one thing ive never looked up on is the milling and valve jobs and stuff