24 ft SC

[Bigshrimpin]

I would guess high mid 50's with that rig . . . unless the motors had some work done. 2.4L powerheads can produce 250hp + with some mods and at 363lbs each you might get into the 60's. Those motors in stock form will cut out at 5800rpm because of the idle stabilizer/spark advance module which means you'd have to be running at least 28pitch choppers to hit 70 with stock 1.87 ratio lowers.