Had a 72 Satellite with a slant 6 in it once. Even raced it one evening. Threw a rod out the block, lost lots of what little power it did have, but still ran with a windowed block.

So, whats considered budget and what effort do you want to make? In my neck of the woods, I can get a head milled for $60. You might be able to scrounge a junk yard 2 bbl intake. Anything beyond that and you could probably find a craigslist V8 and trans for less $$ and more effort.