I think between the 79 and 82 isn't much difference. The main difference in boost between those pulleys seems to come from a combo of intake and what you've done exhaust wise. The more restricted the flow, the higher the boost but I'm sure y'all already knew that as y'all are more informed then me since y'all have the kit. That and the aggressiveness of tune I assume plays a role in how high of psi you will see