I have the Procomps and IMHO, you'll only (if you're lucky) get a torque wrench on a couple of bolts. So..... I use the shortest wrench I have and tighten them as much as I can. If I have a leak, I retighten again until it goes away. Use a good gasket set and you should be OK.
I hand snug them up over and over until there about equal. Then I use the open end wrench about half a turn more or until the puff puff leak goes away.
Becareful because you can wrap the inner flange by going to tight.