1968 440 best flowing intake that fits the OEM A/C brackets

[DAmatt]

Hi guys & gals,

Does anybody know for sure of a good flowing manifold that fits the 440 with factory air conditioning? Did anybody with A/C upgrade their intake? I suspect that the Edelbrock performer (not RPM) would work, but I need to be 100% sure.

Worst case scenario, would a 1971 factory 501 intake work? I could not confirm whether the A/C brackets are the same.

Finally, did anybody do a test on the 1971 intake, which is said to be the best flowing stock manifold, vs the 1968/69? Mine is a '68.

It would be cool to have a confirmation that a performance aluminium intake works, I understand there are good gains to be had, especially from the restrictive '68-'69 ones.

[Challenger340]

I think any of the even later mid-late 70's spread bore manifolds are a flow improvement over the 68/69 pieces ? But again, Sry I dunno if the A/C brackets fit/work ?