http://www.youtube.com/watch?v=eL8i0Tnw7Qk how fastdo you think i will go now

what was it before bob?

hi steve well it they told me 600 then the other guy said 622 his dyno numbers didnt add up so i got to say 600hpthe best i got was runnig 81mph . how did you make out with your boat??????

whats the rpms for hp and tq?, if you picked up 80hp should be good for 4 to 6 mph, with the raised propshaft I got 83.2 gps hitting rev with a 26b1 at 6000rpm, never got a chance to try a 28b1. I had 650hp with old carb on dyno new carb was to be good for about 20hp. my tq was 637 4800rpm. so you should end up 85 86 gps I would think, if you have stock prop height your leaving speed on the table.

finally run 34deg. 680 tq with 718hp