i konw this curt, im sayin tho, it does not acutally gain more pysical cubes by changing a pulley on a blower, cobra guys either get them ported, or get a KB or a wipple, athat is a 2.3 or a 2.4 blower. thats all my arrgument was. look as i said before, im not bench racing for anybody, and it drives me nuts when others bench race for other ppl