Inliners International Forums General Discussion Hi Performance Cliffords or Langdons?

I currently have an unused set of Langdons bolted up to the engine that will be going into my car ( pics here).

I just found a pretty good deal on a set of used cliffords and have someone that is interested in the Langdons.

Do you think the Cliffords will offer more from a performance standpoint? I know that Cliffords claim an 18-22% gain in HP, but I have not seen any numbers for Langdons.

Thanks!