Hi my name is Peter and im from Massachusetts and i Just bought my first g-body 1986 cutlass salon from original owner with 23,000 miles and need some ideas in what direction to go in ? i would like to install a set of headers and a true daul exh in car maybe cam and carb or should i just pull factory 307 out and go with a 350 ? .. if so what kind of headers do they sell for my 307 that actually fit? Any help would be much appreciated.