my vote is a turbo build on your gp

Turbo Regal vs Supercharged Murader vs Cobra- Video

Just a few 1/2 throttle pulls in my new Turbo Buic- Video

^thats his old setup (z7 turbo kit)// and the one above that is his new setup. (not sure what it is)

you have to remember that there is room for improvement.