(Newbe) 273 to a 340 and tremec 5speed swap.

So what do you have for the 273? Everyone thinks everybody wants a drag racer. It just is not so. Make a nice driver out of it. That 273 is sweet. No different trans, no different rear. All money holes you do not need to go down. It just snowballs to ridiculous.
i have a 318 intake so i can put a 4 barrel carb on it, and i also have a 600 4 barrel that has been rebuild and long tube headers.