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

geezer#99 · 11-09-2018, 10:30 PM

Backfire like that is usually because your motor is lean and retarded.
What carb?
What’s your initial timing?

11-09-2018, 10:30 PM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,527	Re: Carbed 5.3 won’t start please help! Backfire like that is usually because your motor is lean and retarded. What carb? What’s your initial timing?