Well, there's two ways to get power on these engines... The easy way and the expensive way..... The easy way is the route most pullers take, which, like you point out, can cause rough idling, and rich running (excessive smoke) when under all conditions.. This is normally done by maxing out the pump controls and putting hogged-out injectors in along with a large (but laggy) turbo to create the boost needed.......
The expensive route is to modify the pump, put a set of fast-spooling but efficient twin turbos on, put in some hi-flow edm'd injectors or similar in, and then tune the heck out of it. Modified cam isn't out of the question, and port & polish doesn't hurt either.. If done this way, you can have 500 hp that idles like stock and will tow reliably all day long, and will pull with the best of em......
