If you have not bought the Z80 take a look at the EME70 with starter from milehighrc. Very sweet & smooth running engine and turns a 24-10 stronger than the Z80. Not as heavy so you may have to add weight but the on board starter and sweetness of this engine will spoil you.
pS: I had a CY P51 which was marketed under a different name. I found out that it was basically a clone of a Ziroli P51 and the same CG and throws worked for me. You may want to compare yours against a Ziroli if you can. I was lucky at a flyin and the guy pitted next to me had a Ziroli so we did a lot of measuring etc. They were the same.
Last edited by dmyers0403; 05-07-2020 at 07:33 AM.