01-15-2010, 03:56 PM
Keep in mind 1 good backfire through the carb can take out the power valve. Also, not all rebuild kits are created equal. When you have it apart, soak your jets, and everything else you can.
OR- This could be something as simple as a vacuum leak, crack in the manifold spacer, etc.
OR- This could be something as simple as a vacuum leak, crack in the manifold spacer, etc.