I have a CXRacing kit with a V3. Wasn't making shit with the stock 3.6 pulley. Went down to a 3.25 and am making 504/433 on 9 lbs. I also converted to blow through.
Does he have long tubes?
skaarlaj I don't think you should be giving advice comparing a gt500 and a coyote since you only ridden in what seems like an intake, pulley, tune 09 gt500. With those mods they only make around 550rwhp. Until you ride/drive in a 700rwhp gt500 like Bruce said you should probably hold your tongue.