So, I have a Weiand 3000 intake manifold as well as a Holley Strip Dominator intake manifold, both are is great condition with no build up in any of the ports. If I am putting these on a 305 with a 600cfm Holley carb, will I see a noticable benefit to using the Holley Strip Dominator intake?

Here are pictured of each for reference:

Holley Strip Dominator:

• Single Plane with Isolated Plenum
• Isolated Water cross-over
• Power band: 4500-7600 RPM
• Port Size: 2.05” height 1.22" width

Weiand 3000:

Dual Plane intake
Port Size: 1.95” height 1.12" width
It isn't exactly the same as this one, but its' pretty darned close. I have a feeling the one I have is out of production now.