Ok I can't get here durring the day. I can get to some places but firewall catches CK5. So now I am stumped. I want to convert olf dollar BUT now it's looking like I need a tranny because of no Vac to drive the modulator. Not somthing I was counting on. Also is the 6.2 a BOP or a Chevy bell housing pattern? That's going to hold things up so now I'm having second thoughts. I needed this to go quick and cheep. I have also ran across a 91 R20 6.2 burb with 92k that I might get for a decent price. did those have the 4l80?