That's pretty impressive. AS it stands I'm not sure if the 3.7 can reach those power levels... solo was trying to get there and he gave up on his car. He was the closest to producing massive numbers out of the 3.7
Solo didn't go as far as these people did.
They completely rebuilt the Genesis engine adding all new pistons, connecting rods, and cam shaft.
Add to the Mustang 3.7 what they added to the Genesis and I bet we could get close.