Quote Originally Posted by Ken1960 View Post
holly says I need a 3.5 in there ,would that help on being so rich
Is this a new symptom? Is your motor rich now, or are you referring it to the cause of the gas smell in your garage?

IMHO, the power valve's vacuum rating only relates to when the valve opens and would not cause a gas smell. Also, unless the valve's diaphragm is ruptured, the higher vacuum valve should not cause a rich mixture condition, but rather a momentary lean condition under power. The lower value valve will help eliminate a stumble under hard acceleration.