It is just on the firewall. It looks like a bracket, attached to the firewall on both ends, but doesn't support anything.It is about 3" long and stands out from the fire wall about an inch right behind the exhaust manifold
there is a sheet metal bar on the right side that interferes with my header. I am tempted to cut it off but, I suspect it is there for a reason. Does anyone know what that reason might be?
not driveshaft,but a 203 canbe a problem.Mine are headmans on vortecs.It took a far amount of grinding to get the surfaces to match and there is a sheet metal bar on the right side firewall that interferes
My Qjet acted similarly. The power valve was stuck open. Don't know why. Don't recall of any backfires or similar events, but it was stuck. If yours was set too high or wrongly jetted, might expect similar results