[CCX33911]

Did anyone see the discussion in the Dove literature concerning the dyno test of the Dove single plane manifold compared to the Eldelbrock Performer RPM? Their claim is that on a 428 with Dove heads and a Comp Cams 294S cam, etc (fairly high HP motor) that their manifold made over 500 HP and the E. Performer RPM made 171 less HP. The manifold change was the only difference between runs. Does this seem correct?