84 SS camino boosted

Hello, My names nick im a young guy next to all you old chevy guys and need some of your knowledge. Im more into boosted inports but i have had this el camino since i was 16 paid 250 bucks for it and restored it, so much rust i replaced 50% of the body metal. and the frame.. Its a 84 ss choo choo keeping it as original as i can besides the motor, its a 305 it has common bolt ons right now cam, high rise, 750 holly, msd box, rollers ect. Stock bottom end and pistons. Im looking to turbo it i like the idea of ONE big turbo i seen people use short headers and make piping up to the turbo mounted any where, so headers piping and intercooler space dose not stress me one bit, Im all in the blue about what to do to tune the car. So far i have a GN turbo, short headers, FMIC 3inch piping. 255 holly external fuel pump, FPR kit for 750 holly, Dont no what to do about no WB O2 sensor? how do you tell AFR without a computer?. how far off is this project? And how much will it take to brake this big iron beast? Im just looking for 350+ to wheels i dont ask for much, Its a T350 tranny? ( 3 speed ). What else do i need to complete this project?

Turbos not a popular thing here? any one?

Turbo's are fine, but how much boost do you really want to put at a stock bottom end 305???? As for the air/fuel ratio, any number of companies selling the monitors. Also a thread on here not long ago about how to make one on the cheap.

Oh come on Dave what could possibly go wrong with the stock bottom end on a 305?

Another thing I would really look at is to verify that the transmission is in fact a TH350. The stock transmission for an 84 El Camino would have been a TH250. The pan and filter on a TH250 and TH350 are identical so you can't really go by that. If it has a lock up convertor (you can tell if it has a 4 pin plastic electrical plug on the drivers side above the trans pan) and an external band adjustment above where the kickdown cable goes it's a TH250.

The TH250s were a very weak unit that had a hard time staying together even behind the anemic stock 305s (much like the rod hanging out of the 305, ask me how I know :3dSMILE: ).

Keeping tire size reasonable the 7.5 rearend should hold togeher which should save you the expense of an 8.5 or 9".

As far as brakes the stock units will probably be adaquate as long as they are in good shape.