Yeah... I'd try the swap!
My FE350 (with just the 2 extra HP) has more torque and speed then most of the FE290's I've come across!
There's one FE290 that can beat me... and I'm surprised that he doesn't have a hole in his engine block already!
And just a note: Big Blocks are counter clockwise... both your carts are Clockwise rotation...
You'll have to have the shifter in reverse to go forward... more torque, but confusing... at first!
It's your call!
