I have a power graph from Ford Fair '09 showing an average of 411bhp over 3 runs. That was with the standard fair of dk greens, t34 etc. The bloke assured me the rollers were calibrated everytime they set them up & an RS200 that ran before hit 390odd which the owner rekoned was spot on
Point im trying to make is dont be drawn in by graphs etc..go look at the car, take it for a spin etc..