Hi guys, I have a 1949 GMC FC102 with a 228 engine. Prior to my purchasing the truck, it has a 4 barrel intake manifold and Fenton Headers installed. The engine has had a full overhaul and a 264 3/4” grind cam. The engine has not been run since overhaul or installation of this intake and exhaust manifold set up.
The concern I have is I see very minimal clearance between the intake and exhaust manifolds (see pics). The closest clearance is .016” the other side is .032”.
