Well we here at the OSS have almost finished the restoration of our Monaro Motors Dual SU carburetor kit and if the bastard 61 gets finished any time soon it will be installed on our OG 1958 36hp motor. Not sure how much HP gain this kit will produce, though we did read some where that it jumps up to 41hp!
There is a motor in the works specially built for this kit and will be show cased next spring when the build is complete!