How much HP from SBM ProComps? Well... 670HP!

I didn't say dynos are worthless, I said it irritates me when they are used as a "sales tool" this very thread is a good example, engine builder brags in a open forum that he made the most power to date with procomp heads...but once installed in a dedicated race car, it ran 122 MPH... that my freind, sure as hell aint close to no 670 horsepower.


Right, so you should be pissed off at the guy running the dyno and the customers who are too stupid to deal with the truth and would rather be lied to. I've seen it done with dyno's and flow benches. Try and explain to someone why their 400 CFM actually only flowed 375 and then you work on them and they flow 360 and yet are quicker. You'll be lucky to get paid.