Quote:
Originally Posted by MJN
Hopefully the gasket fixes it for you, over tightening the carb down to the intake can also cause issues and warp the base plate and cause leaks. The GM service manual calls out 75 in lbs (6.25 ft lbs) for the 4 bolts that hold the carb to the intake. If you have trouble finding the correct base gasket it may be worth a call to Quadrajet Power, www.quadrajetpower.com Also, can you post the intake casting number and the carburetor number? |
Take the carb off and take a fine flat file and run it evenly acrossed the bottom
If it’s warped you will see the low spots the file doesn’t hit.
Do that until it’s all even. Common for this to happen from over tightening the carb down.
12”-14” file works well