Steve, So you're reinstalling the original cast iron intake? I just follow the gasket manufacturers instructions. Felpro says to put a small bead of silicone around each of the passages. For a cast iron intake, use the rubber end pieces provided with the gasket. For an aluminum intake, Edelbrock recommends using a thick bead of silicone instead of the rubber pieces. I think this is to account for the different expansion rates between cast iron and aluminum. Todd On Tuesday 12 August 2008 21:41, Steve wrote: > Hello Fellow AMC-ers: > > Due to overheating issues (to eliminate the overheating problem, I've > decided that this is the best course of action and have considered other > courses of action) I want to R and R the original intake manifold off of a > '68 390 AMX, block off the exhaust crossover passages, and install an > electric choke on the original Carter AFB. Any suggestions on the "R and R > and block off" parts of the procedure? I've used a Permatex product to > seal off the thermostat housing (with gasket, of course) and was wondering > if I ought to use a similar product for the intake gasket. > > Thanks, > > Steve > '68 AMX _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list