The 22r is one of the great motors of all time. It's durability is the stuff of legend. It WILL NOT deliver more power than a 4.o ford 6 unless it is rather heavily breathed on.... and I don't mean a chip, intake and exhaust. My last 4 cyl. was a ranger, built to the hilt. Pistons, valves, intake work, 2mm over valves, falicon crank, all of it. It made 220hp. It friggin' FLEW. Ate lifters like tic tacs, had to be spun up to about 5,000rippems to get any heat at all. From 5- the ceiling, about 8,000 was really hot. I know some taco racers who had street trucks that were even HOTTER. It is not condusive to towing, or even street cruising at all. And, you aint gonna smog those motors, ever. But, I drive my buddy's 2.7, auto trans taco from time to time, and the power is actually not bad, certainly not embarrassing. With 4wd, you can always go 4-lo, and the motor is plenty capable there to do most sane manuevers. And, you'll get like 22-27mpg doing it. Or, there is a shop in Arizona who specializes in 4cyl toyotas that can embarrass some small v-8's. It won't be cheap, for sure! Good luck.