Depends how well your heads are ported, if they flow as much as the Edelbrocks probably not much of a power difference then. Once you get past the basic cam, headers 4bbl each NA hp gets harder and more expensive to obtain. Trick Flows will definitely add power, Nitrous would be the cheapest.
I agree with the others get your traction problem fix 1st, more power will make it's worse. Then go from there.
