i have a 99 f350 6spd i am new to powerstrokes im looking for best way to get 375 hp i already have ts 6 position 4" exhaust cold air intake and valair 400hp organic clutch

 

Why only 375 HP?

 

just so the clutch i have will hold up i guess i could do 400 just trying to get a starting place i also tow alot with the truck i dont have clutch installed yet i guess i could send it back and get a bigger one

 

Moved to the 1999 - 2003 7.3L Power Stroke Diesel forum.

 

You need a set of stage 1's injectors and have that chip retuned by a good tuner. An upgraded turbo would help to. To go higher you need to go to stage 2's, maybe high pressure oil, HPOP, and again some good tuning. You already have exhaust and intake so you have a start. You mit want to think about bellow up pipe so they don't leak also. Talk to Clay at Riffraff Diesel he's a sponsor here and can set you in the right direction anyway. PHP has a good write up on this to.
Chet

 

Gauges first.

 

im making 389 on stae 1's, an adrenaline, an h2e turbo and a fuel system.........of course there is all the other little small mods to help but that will get you there........