302 heads for 318

thanks for the quick replies! The only thing currently done to it is 2.25 piping with an x pipe and turbo mufflers. This car is my daily driver so I was hoping to retain reliability and reasonable gas mileage. Plus I'd love to have a little more power under the hood just to play around with and maybe have a chance against my dad in his 68 cougar. Also I have a quick question about electronic ignition, my car was equipped with it from the factory but would it be beneficial to put on an aftermarket ignition?