Hi All,
I need to get some more HP out of my 90 350 w/250k on the engine. I am going to be pulling my 42 toyhauler across the country soon, and I need to bump my truck up. I have turned the fuel pin, and turned up the idle screw. Will a I/C help? Injectors? Turbo? I am not worried about spending a few bucks to get this thing moving. I am running a straight 4" exhaust right now. There was a nice improvement with the few tweaks that I have done, but I need more. All help would be appreciated. Thanx.

 

Your injectors will push more fuel than you can keep cool without an intercooler. A better turbo (think hybrid) would help a bunch. You will be able to get more power out of the truck with pump tweaks than you can use while towing due to EGT issues.

 

As always Dave you are a big help. Thanx. I am planning on installing the Ford 7.3 I/C. Any recommendations on a turbo, and is this going to be a bolt on application.

 

Stick with the 18.5 cm turbine housing, and get a compressor upgrade kit. Check Peyton Materne's post near the end of this thread for an alternative to HTT.

https://www.dieseltruckresource.com/...d.php?t=151091

It will bolt in, you will just need to make a 4" intake duct of some sort.