Oliver - plan to use Jenvey, tapered 45-40mm TB's. Not sure yet whether to use an MBE 967 that I have in the cupboard or go for an Emerald K6.
Brian - there's no real logic to it. It is not to provide more power, better economy, be more dirveable, or to fill in "flat spots". It is very much HEART not HEAD desire to inject the old x-flow, same heart thing that means I will NOT put a Ford Axle in the back of it, but will probably end up fitting one of the SPC axles.
Conversely, I DON'T want to inject the Vx - because I want it to remain relatively close to original spec (though this wish may change with time).
Dave.