Assume you are running stock 13 x 13 prop? If so, re-propring may be the cheapest way to go for increased hole shot. You may lose a bit of top end, but with the new CNC'd cupped props, it's not as big a difference as in the old days. Unless you are footing the 40+ mph top end isn't that important anyway.
As for engine mods -- there are quite a few threads here on TT. Recommendations include:
- GT40p heads -- quite readily available on Ebay or elsewhere
- Edelbrock Performer manifold (or equivalent)
- cam - check out www.camresearchcorp.com/
-- they specialize in Fords (JEGS or Summit also have similarly configured cams)
I was planning to do this whole treatment to the engine in my TriStar and had purchased the heads and manifold, but ended up selling the boat before I ever did it. Cam specs I came up with after extensive research were:
1800-4800 power range