It could be as simple as a plugged fuel filter. Is the check engine light on? there are no lights on i took it to a transmission shop and they said it wasnt the transmission
Trany shot replace
Perhaps: Fuel filter Air filter catalytic converter
There may be something wrong with the accelerator. It might be time to get the vehicle checked out to ensure nothing is wrong.
Check all your vacuum hoses. Also change your fuel filter.
It is electronically limited at 130mph and the gearing wont let it go past the mid 140 mph marker.
6 horsepower? That wont make it past 5 mph if that is what you are hoping for, Is it a troller? If it is than that is meant for shallow water with a fishing boat...
about 65-70 mph
30 mph - 40 mph
140-145 mph
about 90 mph
Find a bigger hill
650 mph