Hey guys, my uncle is about to change his Intake manifold on his Hardin marine Single carb BBC motor. What are some of the best on the market? Any difference between the regular edelbrock manifolds(I have the Performer on my 67 Goat) and marine motor manifolds? Or are they both the same? There is no room for a tunnell ram/dual carb set up I already tried to have him go though route! haha. It's for a 89 Carribean 21 foot berkley jet made by Hardin.