Try the 4bbl on it first. If your Fury 318 is '68 or '69 that is the 230 hp 9.2:1 compression ratio engine from the factory, then you are already a couple steps ahead the game.
Give that 318 some more fuel on that stock cam, you will be surprised. Even the tone of the engine deepens up, so you know it is getting what it needs.
Feeling Fine with the '69.
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Your factory 318 Dual Plane intake manifold is already port matched to the 318 heads, not something you are going to get with the aftermarket and or 340 large port intakes.
