Thoughts on putting a 60hp 2 stroke tiller steer on a Kingfisher 430 monohull? Dry weight of the 60 2stroke is the same as a 40hp 4 stroke which is an option on these I believe. Boat is 4mm hull version.

About 40kgs more than my current 30HP which pushes along at 23kts but would be nice to be able to tow a biscuit occasionally and bonus of getting to fishing spots faster would be choice.

I have a new 60 hp 4 stroke Yamaha tiller steer on the 4.5m catamaran that I made and it goes well. Different from your set up I know. The motor weighs 115kg.