Lanier 540 T 120
I have that combo. Using an APC 16x8 and 20% nitro with an OS F
plug. Plenty of power. Great flying plane.
You'll have to do some cutting on the firewall for the stock muffler. Also reinforce the firewall and landing gear plate. I found the tail wheel assembly to be way too soft.
I got it when it first came out last year. Maybe they made some changes since then.
Good luck.