Budget cylinder heads for a 318

So there is a edelbrock rpm manifold just for the magnum heads? I was told that the LA intake manifold will not fit the magnum heads due to the angle of the bolts. Are the magnum only intakes more expensive than the la intakes?

Yes there’s a magnum only I believe it’s a bit more expensive. I bought the knockoff but haven’t use it yet so can’t say much about other than it’s cheaper and go on either.