Hypermax has best customer support. I'd do them.
Banks has the hardest to source parts stiff, ats was the stock supplier so there's tons of ats parts but the company doesn't support as much.
A brand new turbo is gonna cost a whole lot. Look for a good used one and save about 2/3rds the cost. Use that savings there to get a moose pump or dps pump and some new or good reman BB injectors and studs for the heads.
Cold air ram intake or hypermax cowl it. No need for a muffler when turboed since it's quieter.
That alone won't get you 300 rwhp but would be pretty decent. You'll want a cam grind, propane and/or water **** and an IC so you can nearly max the fuel screw for more power. I think I saw a dyno number around here showing propane gave a 30hp gain +/-. Having that kick on when needed (hills) would help you pull.
The mechanical fan on these engines Rob some power too, swapping to electric fans ain't too hard. You can get them at a junkyard I forget which vehicle was popular here to Ron em from but I wanna say ford 3.8l. There are wiring kits for 30-50 online to make setup easy as pie with a thermal trigger you place on the radiator to kick fans on & off.
Much more then that is going pretty hardcore for 6wks
