Manifold question

That sp2p is good for mileage.
The only intake I’d consider using these days are;
Edelbrock- RPM and the AG version.
The LD340 & LD4B are good. with single planes, on old intakes, it’s the MP-M1, modified Offy Port-O-sonic or Holley stop dominator.

On new single plane intakes, Edelbrock Victor’s or Indy.
I haven’t seen a TF yet. Not in my hands anyway.