My 62 Valiant

valiant62 said
fix the floors with road signs

thiers a company that takes your original radio, and puts all the new technolgy do dads in side of it so you can have like a am/fm radio with like a ipod jack

See here

Then leaving the slant 6 in their but adding a bigger cam, 4 barrel and headers.

See here

Then put the original 13s and hubcaps in the front, and run 14s or something in the back, and up grading the brakes and maybe rear end.

Very hard to upgrade the brakes if you stay with 13" wheels. Basically all you can do is go from 9" drums to 10" drums. Better to run 14" or 15" wheels all around (you don't really want to carry two spares, do you?) and put in good brakes.