Author Topic: 1987 v10 350 tbi  (Read 1488 times)

Offline manitobamike

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1987 v10 350 tbi
« on: April 13, 2011, 11:21:03 PM »
Ok i bought this truck in montana and it has headers and small little mufflers that look like small cherry bombs , the problem is after i let off the throttle the truck pops and crackles out the exhaust , is it normal? for this set up ? it only does it if you step into the trottle and back off

Offline 1979C20

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Re: 1987 v10 350 tbi
« Reply #1 on: April 14, 2011, 12:39:11 AM »
Where does the exhaust pipe end? What your hearing is backforong and its from cold air beong sucked into the exhaust pipe and combusting with the hot exhaust gasses. My truck does it any time I let the throttle out. But, I have headers with glasspacks that dump like a foot in front of my gas tanks, under my cab.
1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF