Misfire under load due to cracked Evo sport header
Which pulley did you have first? and how did it feel once you got a 2nd one? Do you get belt slip? Does you sc overheat? Have you done 1/4, dyno?

asp pulley first for around 3 years, then the SC pulley for around 3 weeks.
after the sc pulley, car pulls harder from 3000rpm till redline, and the difference is dramatic especially at third gear on.(75mph+)
I got belt slip only after a several hard runs.
I don't know whether my sc has ever overheated or not. (probably not)
I've done 1/4 and dyno, but only before the SC pulley.
Anyway, I'm running ASP + Code3 and my car pulls very hard in the mid-range, but I lost A LOT of power above 5000 RPM.
Jerry @ LET has my ECU as we speak however, and I am confident this will fix the problem.please keep us updated what's the problem. I don't have this kind of issue though.
your car runs 14.5psi stock. Now it's running 20+ psi.




