well its no less torque than the standard motor and has double the hp all be it at higher revs
it even looks like the old unit and its gm
from what i worked out with 235 75 15 tyres i would need around 4.11-4.30 to match the donor cars 3.7 on 195 65 15 gearing allthough i dont wish to go 140 mph! so i guess a little lower would be fine and have it accelerating pretty well. the donor car will give 30 + mpg and have read reports of 40+ with a few easy mods
the donor car is also heavier than a standard 3100 and the ,new, engine /gearbox is a lot lighter than the old 3100 unit so allthough i never chose this to build some ,race, car it should hopefully be a good allround daily driver
just need to get the gearing right