Just bought a 2012 Z-something Tahoe and may have lied to by dealer? An engine idle thimg.

[MarvinVR]

sounds like an obs 99? the sbc 350 had water running thru the intake and a distributor that needed timing adjusted with a scanner.

great motor, little gm flaws here and there like coolent that ate the intake gaskets and the fuel injector spider under the intake but over all made less hp than a ls, but man they lasted as long as you felt like owning them.

I have 6 firebirds that I got for pennies because the owners thought they had blown engines---they were all eaten up inner manifold gaskets from GM coolant ANOTHER good idea from GM