Aftermarket Intake Manifold Question

[Jakey]

So in my usual browsing through threads in different sites, I've been reading a fair amount about what appears to be the two most commonly used choices for intake mannys: Magnus & Forrester. I know that they both have their design pros and cons but that's not really my question. My question is that I've seen a few different posts where people have said that an aftermarket intake manifold should be towards the end of the priority list for modifications, why? If you already have a decent sized turbo with all the necessary supporting mods on your car, for example a 20G setup like Nash was running, why should an aftermarket intake manifold come after aftermarket internals? It looks to me like a 50 hp gain would be worth the 500-600 bucks if one wanted to stay away from forged pistons, rods, ....etc. Granted I could be running across people's opinions that are simply coinciding with each other or maybe I'm misunderstanding something in my readings?

Thanks!! :bounce: