February 3, 2007Stock 6lb pulley that came with the kit. My Autometer boost gauge consistantly reads 6 at WOT. I probably wouldn't go past 8-10 without an intercooler.
FRPP says their tune is conservative because they don't want people destroying engines and trannies and coming back to blame them. They feel that ona stock 3V motor, this tune is prudent and safe. And for me, that's pretty good. I don't race it and I like the driveability and REASONABLE gas mileage. I'd like 350RWHP but I'm not going to lose sleep if I don't get there. The kit is awesome and the feel you get punching it is pretty damned good!