1965 Ford Mustang

Future Plans

My goal is to upgrade the headers and exhaust system, to include going from a 1 barrel carburetor to a two barrel. In completing the upgrades, I would like to have little to no modifications to allow said items above to fit properly. Currently, the horsepower is at 120, but with the mentioned upgrades I am hoping it will increase the horsepower to around 150. I am trying to balance cost with quality. Any recommendations you can share is appreciated. Currently, I have the 185/75R14 wheels with the stock hubcaps, but with all of the choices to make sure I have the correct fit is a lot to narrow down. I am looking at the 14”X6” and 14”X5” options. Any suggestions? Thank you!