Hi Jack21
Thanks for the help. I have looked thru the gasket page and there are only 2 gaskets that have the 1 3/4 butterflies. There is another that is listed but it says it has studs as well...turns out to be quite different in that the centre rib section is gone completely and it is more of an open square bore, more like what I currently have and can't use.
Holley Gaskets
The turkey pan opening is simply an open square bore. I need to keep closer mating surfaces if I use a different gasket on the intake to pan as compared to the pan to carb i will introduce sealing gaps. I do need that center rib as well as some gasket material on the outer edges for the carb flange which has some porting routes. Why not use 2 of the same??
Getting the carb up off the bottom of the turkey pan (5/16")would be helpful as well as I had some clearance issues at each end where thge bottom pump levers of each float bowl and their pivots, actually contacted the bottom of the pan valley. I have slotted for those anyway.. the rise wouldn't hurt.
The four hole style gasket doesn't seem available for 1 3/4" butterflies from Holley at least.
Tim