How tall does a Predator - 212cc 6 1/2HP Engine measure in at the highest part? I was thinking of using a totally stock one in my 1971-1972 Steens Taco - Super Trail 100 Mini Bike if there is room to do so. I have 13 1/16" of distance from the engine mounting plate to the bottom of the top frame rails to work with. Can someone please help me out with a measuement?