so i just got a new motor in my car with .30 pistons ported head ferrera valve train balance shaft delete mild port on mani. so the car is showing that it is having early detonation in the third cylinder. stock supercharger stock tune stock injectors but 1 step colder plugs and 2.8 pulley. the cel flashes when the car starts to spudder then goes away then comes back on. what do you guys think

 

You shouldn't have a smaller pulley with out bigger injectors. No sure if thats causing your problem.

 

ya i know that im just tryin to figure out somethin

 

2.8 pulley on stock injectors?!?!

thats pushing it on GM 42's

Upgrade injectors asap and get a tune and go from there.

 

ok update my car is throwing a misfire code in cyl 3. i switched coil packs switched plugs even switched injectors. the car just feels like it is spuddering whenever i hit boost. im also boosting at 22? does anyone think this is my ignition coil