Hey everyone . I picked up a few 420's the end of last year and I'm getting ready to re-power one of them with the HF 22 Hp Predator . I searched the forums for a post on this , with no luck . I'm sure it's been done though . Can anyone point me in the right direction to pick up the parts for the install ? From what I've read these engines are well worth the money. Definitely gonna go with the electric fuel pump . I also saw on a YouTube video an digital hour / RPM meter . Anyone know where I can get one of those ? Has anyone made a conversion kit for these engines yet ? If so , please contact me . Any help is greatly appreciated .