exhaust studs

i have a dumb question. are the intake and exhaust manifolds held on with all studs? or is does a bolt get used next to the thermostat housing instead. mine didnt have a stud there and my factory manual just shows a hole and then studs in every other position. but i have seen people with all studs. i think i will just put a stud in there anyway, but i was just wondering.
Author: admin