Weber intake?

[RTRCJ7]

I have the AMC 258 i6 / 4.2l IL6 with the carter carb . I plan on doing the Weber conversion and was wanting to know if this intake will work ?If not which one will?
Offenhauser 5999DP - Offenhauser 360 Degree Dual Port Single Quad Intake Manifolds - Overview - SummitRacing.com
I will probably do the Weber first , then later do the intake and headers. Any thoughts on this is wecome