I love the sound of your engine conversion 170BHP sounds good There I go again time to think about engine changes!
My reason for the neg plates on my 2009 4/4 Sport was to overcome my Mogs Understeer issues. But I would say everything is all about give and take and some alterations are not for every one.
It was by driving Icepacks 4/4 Sport Morgan I truly found out how far I had developed my Mog into something special, and would not be everyones cup of tea.
Cain