Re: "Scoober" a true bluebird from Dickson co Tn.
Yes, done several upgrades on 12v and 24v engines. What year is yours? That will determine if its 12 or 24v and what injection pump you have.
ID what the engine yr is then search on you tube, all kinds of tricks for various yrs. Start with a good CAI and larger exhaust, removing the muffler. Then either advance the pump timing and or adjust fuel screws for more fuel. YOU WILL NEED A EGT GAUGE when doing this, as the more fuel in, the more power, and the more heat. Running a "turned up" engine without an egt is a good way to melt a piston/fry a turbo.
I'd say your biggest limitation will be the tranny. Also keep in mind the more mods u make the worse the fuel economy will be and the shorter the lifespan on the drivetrain.