refresh engine / bearings new pistons & rings (block needs to be checked / bores cleaned up before you know which size pistons to get)
get the heads cleaned up replace what valves are needed
new cam & lifters (springs on the heads will determine the limit on the cam, if you go too much lift you will need new valve springs as well)
headers
intake
rebuilt carb
tally that stuff up and maybe if you are lucky you can pull it off.
stroker kit add $2k for a decent one.
if you go with too big of a big cam you will probably need valve springs like i said as well as adjustable rockers so the price goes up