The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Ceeten · 12-01-2009, 11:34 AM

Take the belt off the smog pump (if it has one) and try it. I had a worn out 305 that would pop like crazy with that thing running, although it was mostly on deceleration.

12-01-2009, 11:34 AM	#6
Ceeten Registered User Join Date: Oct 2009 Location: Jay, Fl Posts: 126	Re: Exhaust popping Take the belt off the smog pump (if it has one) and try it. I had a worn out 305 that would pop like crazy with that thing running, although it was mostly on deceleration.