I know a guy with a 2003 STV Cobra. He put a Kenne Bell Supercharger kit on it at around 6k miles. Once the car hit 7k it started cutting out at the top end of a gear. The kit came with a number of different acessories (sorry i dont know the specifics) including a street and a 19PSI Race pully. The problem occured after they put the race pully on and continued after putting the street pully back on. I was wondering if anyone had experienced this problem before and/or if anyone had any sugestions on how to fix it. Any info would be a great help.

 

was the tune ever adjusted for the other pulley? are all the needed fuel system upgrades done to the car?

 

Yeah, make sure it's tuned properly by a pro, and check your fuel filter.