Diesel Bombers - tunner or new vp pump

I don't know if I'm posting in the right spot or not. Well I've got a 98.5 24v quadcab 8ft bed with a 5 speed tranny. I already have a airdog 100 with 75hp sticks, TS MVP box, 4 inch exhaust, a valair clutch thats good for 500hp at the rear wheels, fuel, boost, pyro, gauges. I was looking to and more fuel should I consider a smarty with fuel only or go with a different vp for the fuel that I'm looking for. What kind of hp gains could I see with the smarty? Same for the vp, I'm looking to add about another 75hp to the truck. Still running a stock turbo and is that an upgrade that could net more hps with also doing these mods Thank you for any help. I was also wondering what kind of hps do you think I'm making now Thank you again.