I'll take the 8-71 mooneyham blower. Keith will pick it up. You guys can work out a price. He doesn't know that either but he will. Maybe he can bring you dessert :-)
LMAO! Well, 2 problems, the 8-71 is a fresh Kuhl (Mike Kuhl hisself before he sold the shop and decided to take on cacklefest all by hisself) triple teflon stripped dealio.

The 10-71 is a Mooneyham. Fresh (NEW, IMO), but single teflon striped.

Sooo, In a nutshell, either could probably provide you with +/- 50 PSI boost @ various RPM, depending on drive ratio right out of the box.
But there IS NO 8-71 Mooneyham in my stash.........(kinda like "there is no spoon"......)
Ray