[siriusdish]

Had the Camaro 2ss at a buddy's shop and he noticed that the harmonic balancer was wobbling and not smooth. Started his 6.1 Hemi up and it was smooth. Took it to the deal and they looked it over said it was fine, had everyone in the shop look at it. Made them start the one in the show room and was smooth. Said they had to order parts for it and will call when they come in.
Ok, on to another issue of concern another problem have a question on is anyone notice a backfire or pop from the After mark mufflers from Gm, 3 inch tips. Is this from the motor being off balance or something else? back pressure maybe? That has been going on since the car was picked up but not all the time but does do it.

Thank you