Full Force
05-20-2007, 02:12 PM
Well as everyone knows I changed the heads on my boat (SBC) from 200CC runners to 170CC runners, what a difference! I gained 3-4 mph and alot more torque, I have a hard time spinning a 21P Mirage still but I have a labbed 20P Mirage and it seems to be perfect so far, 4600 rpm at 52mph best so far. with the 19P rapture I get 4800rpm and 47-48 mph. with a 21P Mirage I get 4600 rpm at 50 mph best.
Anyone have prop advice of should I leave it alone??
Anyone have prop advice of should I leave it alone??