Consider a performance camshaft from
www.cliffordperformance.com or
www.hescosc.com . Hesco has a Jeep performance forum with lots of good info.
Check out the Firepower ignition upgrade from
www.performancedistributors.com .
I recommend replacing the stock junk carb with a Motorcraft 2100 or 2150, it'll run better especially at angles. You'll need a Mr. Gasket carb adapter.