Heads are Edelbrock performer 6000 series, electronic points & coil from MSD were installed prior to installing the heads and the engine was running fine then. Manifold also from Edelbrock as is the 750 cfm carb with manual choke. Engine is 390 which was re-built about 15,000 miles ago. Gaskets were a package from Mustangs Unlimited, unknown manufacturer. Car starts very easily with full choke when cold. When warm the engine starts immediately with no gas. Engine runs very well when cold, lot of power & torque under load. When operating temperature is reached driving at 30 or 40 mph the missing is first noticed. Gets progressively worse until the car can only be driven with the engine at idle speed. Currently planning to replace the MSD points & coil which were installed about 4 years ago.
Wednesday, November 18th, 2009 AT 11:41 AM