[Ron61]

I had a 64 Galaxie 500-XL with the dual four 427 and it was rated at the 425 horse given above, but the small tires they came with made it impossible to really get on it until you were above 60 MPH. But I don't believe it had as much power as they claimed. My 69 NASCAR Cobra with the 428 Cobra engine which was rated at 335 horse I had dynoed and it came out at 440 horse using the original exhaust manifolds which were the same as the 64 427 had as it has 427 heads and the bottom end is LeMans rods and stuff.

Ron