you guys really need to clarify what dyno these numbers are coming from. we have a mustang dyno, which is revewed as the most accurate/consistent . I have never seen a stock m42 make more than 110 rwhp. do the math.
138 at the crank minus ~16-17% power loss to the wheels = ~115 rwhp. and seeing as how all the ones i've tested have been origional engines, 110 at the wheels is the most i've seen. i've tested several with diffferent mods, tb delete, intake, chips, exhaust, etc. an extra 10hp-15 at the wheels is about it..
everyone knows dynojet and many others are typically 15% inflated so for many of you, those numbers are still way too high.
post your dyno graphs so we can make sense of all this..