back somewhere around 1992..i switch from a 727 to 904, both using a turbo action 3800 series converter that flashes to around 4800 rpm...and the 904 was .15 faster and almost 2 mph...

never raced using a 727 again...

Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)