Weiand Action Plus any power gain over factory 340 ?

Dustine said
Is there any noticeable low end power gain going from factory cast iron 1972 340 intake to a Weiand 8007 Action Plus ? My car is a bone stock 72 340 low compression cast crank factory exhaust manifolds small port heads 904 auto . I am in the process of switching the 3:23’s to 3:73’s from Dr Diff . Other than the wait savings is it worth the switch to the Weiand ?

I can’t say I’ve ever read any articles, posts or test results comparing the two. You’d probably have better low end up to low/mid range with the iron but better mid/upper and upper range with the Weiand. The Weiand is a high-ruse and has better radiused turns etc etc. I’d clean up what you have at the most and run it.