I have a 88 dodge dakota 2.2L, and it has some problems that I cant really get to the bottom of. It loses power after driving for a few miles, like it barely wants to pull at all even on a stretch. And another thing is that it wont crank sometimes like there is no fuel getting to the carb. I blew the lines out once before, but I dont have an air compressor anymore at home. I see that it is leaking around the head gasket cause after I try to craank it I see air bubbles coming from around that area. Other than the obvious, what else could be a factor in my problem?