Man seems like a SBC with fuel injection would give you a ton more power and better milage. I don't want to anger the purists but my short experience is this 3fe motor is a gutless pig and thats with 31 inch tires. It may last forever but it had better because thats how long it will take to hit 60. I think if I had 2k I'd pull the whole drivetrain and drop in a 350/700r4/208 combo and be done. Could be bought used for about 1000 and could probably have the work paid done at 1500. You'd spend more than that just on a turbo and still have less power and gas milage.