So as most of you know, I've got this 91 hatch. Poor little puke never bothered to grow a scrot - I can't handle the slowness anymore. That and I had the valves adjusted about 4k miles ago, and for the last week the car has been sounding like the second coming of christ is happening under the valve cover. Valvetrain makes noise like a mofo. I just need something a little better than what I've got. I just spent a couple hundred on new axles and such so I'd like to keep all that. I'll be looking to replace the clutch, engine, computer, and do an mpfi conversion. I'm thinking dohc zc, but the sohc zc is a couple hundred cheaper. I just don't know. Is there any distinct advantage that the dohc has over the sohc other than stock power? More on this later. I've work to do.