1997

I got a quick question took my car up to the tuner today and he did his stuff, ran it about 5 times it was looking good he was starting to dial stuff in and on the 6th pass started miss firing at 22-2500 rpms and goes away after that also loss alot of power when it did that also so he went back to the tune before and did thensame thing started missing again. Idles good also, It has new plugs wires , fuel filter, air filter before taking to tune shop, heads and cam with 6.0L swap in a Camaro

gagliano7

Could be a bad coil.