Quote:
Originally Posted by GhostDakota
Took it to a fellow LS1 owner. He hooked it up to his EFI Live. He stated: "I hooked up HPtuners and monitored current misfires and #5 and #7 are misfiring badly. It sounds like to me he's either got a broken valve spring, or two, or a bent valve. I told him to get the driver's side valve cover off asap and see what's up before he does anything else. "
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you havent removed the valvecovers yet?
bent valve? thought compression test was good.