you could go with an electric fan. a 2.5 to 2.25 exhaust system. port the exhaust manifold. i happen to be selling a matched ported air tube, throttlebody and intake set. good places to start are changing your fuel filter and a freeflowing air filter

1995 nissan maxima se, 5spd short throw, aluminum flywheel and crank pully, stage 3 clutch, custom ported top end, full 2.5 exhaust jdm front end