If it has the model B roch. carb. there is a vacuum passage in the bottom of the carb. It must have a passagway in the gasket to the intake manifold. If all these things the guys have mentioned are correct you might try putting about 2 sizes smaller main jet in it. These carbs are so simple it;s easy to experement with them.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum