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I will check them but let me ask would there not be other problems caused by a bunch of burnt exhaust valves? There is plenty of low RPM power. The problem is noticed around 1500RPM. Any other ideas cause it appears to be a very well taken care of truck or I would not have bought it. I would add a couple pics if I could figure out how... thanks, Peter


My miss wat at 1200 RPM and it was caused by a bad TPS.

CT