Sorry, no, you would be wrong. Racing fuel would help - but it is hardly a solution and you risk additional damage. I would have bet money on what you found with the sparkplugs based on your description of the pulley and unknown (if any) tune in the engine. You are indeed lucky. My suggestion is that you contact Torrie and he can set you up with a tune "out of the box" and then he could optimize once he is there.
Sorry, no, you would be wrong. Racing fuel would help - but it is hardly a solution and you risk additional damage. I would have bet money on what you found with the sparkplugs based on your description of the pulley and unknown (if any) tune in the engine. You are indeed lucky. My suggestion is that you contact Torrie and he can set you up with a tune "out of the box" and then he could optimize once he is there.
Kendall - you are correct. Torrie did his magic. His tune, and a Mafia - has the engine where it should be.
Yeah he pegged the MAF at 5800 with that 2.5 pulley.
So you added a Mafia?
He must have either been running lean about 5800, or rich at or below the 5800 without one.
I did to 2 of the GT's yesterday. Yeah we all know what happens when you hit 5V that earlier. It leans out and timing advances unless the spark and fuel tables are raped to attempt to cover it.