Dual exhaust HP increase?

you could look for a super six intake and carb set up. you could take the head off and have it milled to get some compression in it. a good valve job and have the head rebuilt. throw a cam in it and new valve springs along with a header. that i bet would net an easy 50-75hp. I bet you could shop wisely and do the whole deal for less than $1000. you would most definitely feel the difference.