Contour Enthusiasts Group Archives Forums General Dyno and Drag Dyno #5 here it is

I can get you a free run on a mustang dyno to see if that dyno is right. Though I do reckon that's a long ride.
Something ain't quite right here..... or it is possible you just got a freak.

I'll gaurantee one thing... do the same mods on another regular 2.5 and the same outcome (on a definite correct dyno) will not occur.