Don't really know anything about inside of engine. I did run my new inspection camera down the #3 intake port and I could see intake gasket and/or face of head port sticking out slightly on 3 sides of the intake port so there is another issue. I'm guessing no on head porting. And I'm learning a lot about racing type parts on a street engine. It has an Edelbrock RPM/Airgap intake and a Holley 4779 750cfm mechanical secondary, double pumper. Also an MSD billet mechanical advance distributor. When I took the carb off, gas was standing in the ribs in the intake floor. So cold intake and big lopey cam creating less vacuum maybe not keeping gas vaporized. ???
