Which air gap manifold?

stroked 340 said

Theres actually 3 performer intakes: the performer 318-360,which has the smaller 318 ports,the performer rpm which is for the 340-360 ports,....

Click to expand...

Technicallly, your incorrect.

There is the "Performer."

Then there is the "Performer RPM" series in 2 flavors, regular and air gap.

There is a name similarity (sp? ) but they perform differently.
To group them togther is wrong.