Since I went turbo I have been running 3.27's. This year I got a best of [email protected] though my stock '86 long block in my '95. Running a 26" slick. Was thinking of trying a 28" tire but thought it would hurt me at the top end. Was also thinking of swapping to 3.55's n 28's. Wanted more input from people with more experience. Also this is through a tremec 5speed.