Would a Brison 2.4 be enough power for a Yellow AC Zero ? Mine weighs around 24 pds with engine.
I have a 3.2 available.

If you don't want to use your 3.2 then yes you can use the 2.4. The original planes flew with a G-38 to give you an idea of what engine they were flown with. My YA Spit has a 1.8 Moki and is close to 24# and flies fine, pretty scale like.

Thanks BobH, That the info I wanted I was reserving the 3.2 for another project...Vic G.