I have a 70 firebird 350 and want to get a little more out of this engine what can I do besides the usual bolt on's I put a new 4brl carb and exaust ignition any body know of some one that makes a turbo or supercharger or something???  

There was some talk of somebody reproducing the old HO Racing turbo kits, but I don't recall who. Aside from exterior bolt-ons have you tried any internal mods yet? How about head porting, 3-angle valve job, camshaft. Though I don't have any 1/4 mile numbers yet, my Formula with a stock 75 350 long block (original pistons, rings, bearings and heads) with a Crane 272 cam, stock intake and exhaust manifolds and 2 1/4" dual exhaust, feels like a solid mid 14 second ride with an unmodified th400 trans and stock converter and 3.42posi rear. The important thing is gearing, it's a small motor and if you are using 2.56-3.08 gears you are hobbling the poor little mill, and no turbo or blower will make up for that. Fill in the blanks about how you want to use it and what gearing, trans and accessories (A/C) you have and we'll see what we can do to help.
Steve  

its all stock 70 firebird 350 all I have done is replaced the 2bbr with a 4bbr and some new tires it runs 15 flat right now new headers and new ignition system. dont really want to mess with any internal mods right now no AC  

Frist I would not recomend any type of forced induction on a stock bottom end. What is your power goal and then we could recomend some parts and machine work that can get you to your goal. Also what is the code on the heads you have witch can be found on the center exhuast port.