Here are 3 of my planes that have RCIGN Zenoahs in them.
The RV-4 has a G-23
The Aeromaster has a G-62 in it.
The H-9 P-47 (unfinished at the time) has a G-38 in it.
I also have a H-9 Corsair 60 with a G-20 in it.
All of these were converted and lightened by Ralph.
They are easy as heck to start and everyone at the field loves them.
I keep having to fend off offers for my G-62 but I will never part with it.

I initially had a little trouble with the G-23, ignition related, next thing I know there is a replacement ignition at my door step a few days later. Ralph is one of a kind and a REAL credit to the hobby. I had to include a picture of my smiling mug because I am very proud of the engines.