I'm currently in the process of doing a vacation buyout and will soon have $1,500 to finish my GT40 build. Right now I have the upper and lower sitting in the garage. What do you think is the best use of that money? My goal is to push 300 to the wheels, not sure if that is possible but I'd love to try. There is a good set of GT40 heads that I can get for a decent price ($200 ish). Should I even consider those? How would you use that money to complete the build.