Ok lets say i make this 273 happen what kinda HP and trq should i exspect just a guestimate plz i know there is alot of factors not pin point accuracy just wondring what i should exspect.
Close to 400hp imo with the 273. The 360 would be night and day! BIG issue in your 1st gen A-body is ROOM.
I wouldn't start on this until you are absolutely sure this is what you want! The car you have now will be nothing of the sort once turbo'd. Everything has to be changed. Fuel system, Ignition system(I see your BTM), exhaust system, oil system and so on. Once you think your done there are a thousand nickle and dime things that will bite you. Believe me, I know first hand. As much cash as I have spent my car could have had a 500"+ stroker and a complete new interior complimented with all new chrome/trim.
Once mine is running here shortly, I will know if it was all worth it!
After all my rambling and you still want to do this, READ everything you can and keep reading! Carburation will be your biggest hurdle. Be sure to obtain a good afr gauge.