Planning first engine build, need help

I think you might be puttin the cart before the horse. Why not try and tune what you have? Or are you just wanting to spend a pile of money? If that's the case, then have at it!
Because ive been spedning lotsa time trying to get it dialed in but it just wont stop smoking, and its annoying my neighbors lol figured i could just take it apart fereshen it up and get back on the road. I have the money but im on a time limit so i came here for advice first