I am about ready to push this damn truck over a hill at this point. It's so weak, that 4 banger just don't cut it. and The 2.02 gears don't help either. yeah you read that right, 2.02 gears out back. I didn't even know they existed. But anyways. I've put on a dual exhaust setup, a new, higher flow intake, and the thing gained a little bit more but it's still weaker than yo mama. I had the valve cover off the other day and saw how easy it would be to change the cam in it. Now my problem is finding a cam for this beast. Any suggestions. It's a 93 2.3 with dual sparkplug head. 5 speed.
...although, I know what that's like, I have the same truck only a year older. Fortunately for people like use the 2.3L I-4 is a popular engine in racing applications (mostly dirt, circle track), because it is practically bullet-proof. I've had a roomate who had a pinto w/ an approx. 300 (flywheel) hp one. As for the cam, I think that Comp Cams produces one and even if they don't, most reputable cam companies like them will custom grind a cam for whatever you need. And it's supposedly not too expensive from what I hear.
However, if you really don't like your truck that much you might want to look into just doing a V-8 swap.