Wondering if it was percolating from intake manifold heat. Do you have a phenolic spacer between the carb and intake manifold ?
Also, wondering if your heat riser is stuck and you are pushing hot exhaust through the manifold crossover?
Steve
Last edited by sstock; 12/29/2019 1:37 AM.
1953 Chevrolet 3100261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY GalleryVideo of the 261 running1964 GMC 1000305 Big Block V6, sm420, the next cab off restoration
