better engine
 

whats best, cummins? duramax? upgrade 6.5 can the 6.5 be as durable and produce low end. are the conversions worth 30 -40 grand anythoughts does the alpha run that much better for triple the cost

Re: better engine
 

From my experience with the 1994 6.5 non-turbo, I can say that I think it has enough power, but would probably be considered "underpowered" by most. I don't think any of the conversions are worth it. Unless you could put a Duramax in for the same price. I would probably just drop the new 6.5 turbo Optomizer in to replace the 6.5.