89 360 engine

318willrun said

no adaptor needed. I'm running a Action plus on my 318 with a Holley 770. As I said, many choices. Action plus is cheaper and will perform great on that 318. IF a person wanted to add a 12 dollar eddy square plate, fine. Sell them at any O'reilly's or ebay, etc​

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I wasn't sure if a square bore carb would bolt on the Action Plus without an adapter... I've never tried that combo before...

But I still like the Stealth a little better as it has 800 more RPM on the top end...