its a 92 w250 LE turbo timer, tach, boost, and pyro but the pyro is post turbo... So what kinda numbers should I see post turbo?? When I get a 4" dp I will move it to pre turbo and install some nice gauges... they are some old gauges with crappy lights.. 236k miles with rebuilt auto tranny @ 197k with a heavy duty tourque converter. It feels tight but with the 21.5cm housing it only produces 10 psi of boost on a cold rainy day @ an altitude of 1000 ft. So I wanna put the 16 housing exhaust and an AFE with a diamond plate box.

 

Scroll down about half way on this page and there are Cummins spec #s for pre and post pyro.
http://dodgeram.org/tech/dsl/Facts/91specs.html
One part says 950 at rated power, 810 at torque peak.

 

is it a 4x4?

 

w250=4x4 3/4 ton