Upgrade your carb to a stock Quadrajet and get a good stock 4-brl intake. Upgrade your cam and replace timing chain while your at it. Put on the long branch Pontiac exhaust manifolds or put on headers. If you have a Auto then put in a shift kit.
IMO
Gus nailed this one dead on. All of the above is the answer you are looking for. Even just a stock Q-jet and stock intake will help tremendously...
