As cast or mildly ported Eddy’s are recommended for a stock/ mild 318 many times over. And yet a cnc ported is not recommended for a stock/mild 340 or 360. The biggest excuse is the ports are too big and the engine can’t use that much flow. Why is that? Is that about it or am I missing something? Kim
I think it’s a load of ****. As cast for a teen should be able to carry you very far in performance. A CNC’d set just raises the bar higher. I don’t see a problem anywhere with a set CNC ported on ether engine.
It would have to be a disastrous mismatch to be bad. IMO of course.
