compound turbo set up or a single for my goals?
 

Goal: 500-550hp and still be able to tow my 12,900lbs dozer from time to time.
Question: what should my next step be? I started to build this truck as primarly a dd but have since started doing side jobs and would still like to pull my dozer if need be. I have been tossing up a few diffrent ideas to obtain a safe and reliable 500hp and still be able to haul:
* s300
* He351ve
* He351cw
* a ht3b twin set up with my stock hx 35 or a he351 turbo
now in addtion to what i already have done to the truck I know I will need a turbo and prob ddp dv and some tuning to get my 500hp goals but is there a turbo set up and or what size turbo spec should i run to reach 500 and spool like a dd for towing?

I can fab everything up myself and can get ahold of a HE351 turbo for $250 and a ht3b for about the same.

thanks guys

351-3b's make good twins. With your pump maxed and the injectors you have 500 should be easy. The 351 in my twins spools like stock. I pull heavy with the 01, the 341-3b makes a good towing setup but 500 would probably be maxed out. 350 to 400 is about all the cooling system will handle and still gets hot quick.

when you say -cooling system- what are you reffering to? actual engine coolant?

I was lookin into making a he351ve or he351cw work as a single or in a twin set up with a ht3b what im not sure is which one would be better for my application the ve being variable vane and having to rig some sort of actuator or the cw off the earlier common rails seems a bit easier but not sure how either would fair as a single as far as getting me to 500hp and being able to tow.