Holly Misfire Batman!!!!..........

I installed the saleen under drive pulleys on my "06" and then proceeded to test them out. They were fine up till 3rd at 3500 rpm's. That’s when I got a flashing "check engine" light from my cluster. I thought belt slippage but when I checked the trouble codes it read misfire in the 2nd and 8th cylinders.................................................................W.T.F.??


Anyone have an idea what is going on?

Well I just took it out around town and nothing , then the freeway up to 130mph wraped the first four gears to 6000 a couple of times and nothing. When it happened today it happened 3 seperate time all in 3rd and all around 3500rpm sustained. I don't know.

Well I just took it out around town and nothing , then the freeway up to 130mph wraped the first four gears to 5500rpm a couple of times and nothing. When it happened today it happened 3 seperate time all in 3rd and all around 3500rpm sustained. I don't know.