Intake manifold fitment

So, I just purchased my first mopar with small block 408 stroker a while ago, and have been thinking about EFI conversion. Currently it has 2x 450 Holleys on top of a tunnel ram connected to some Edelbrock heads.

I know that there's a Sniper EFI kit with dual throttle bodies, but that seems like a bit of overkill since even the single body version should be ok for 650hp (this car has been dynoed for 360hp on the wheels).

So, as a Mopar newbie: How can I know which intake manifolds fit what? Is it enough to know that it's a small block (I actually don't know what size it was before the stroking) or should the manifold be matched to the heads?

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