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1046709 Anyone know at what RPM a 2.5L in a 1990 YJ develops peak torque and HP? I've been looking for this info on the Net, but can't find anything. I'd like to know how to balance power/acceleration/fuel economy. I've got that upshift light, and it insists that I upshift at 2100 RPM, which...

1055841 I'm looking for inexpensive alternatives to pre-made diamond plate corners/rocker panels for my 90 YJ. I can buy sheet aluminum for much less $$ which seems like it should do the trick. Questions: (1) What sort of prep work needs to be done before installing? I've got some rust...