With all the talk of conversions, etc.... has anyone done similar to the Tee Dee .09?

I recently aquired 2) Tee Dee .09's that were quite well used...I put new piston/rod assemblies in both of them, and now they have decent compression again.

Tee Dee .09 glow heads pop up on epay occasionally, but they go for even more than the Hi Comp. .049 heads...[:'(]

Has anyone got r.p.m. #'s for the Valentine, or any other head(s )?