Derrington Four branch copy

[mike.perry]

Put me down for a set. Any chance that you could supply enough bits for a single and twin inlet?
I have a pair of H2s in my garage waiting to be used or maybe just one of them might do the job. I suppose there is the possibility of over carbing the engine but then the 948 Midget used twin HS2s and only an extra 30cc, the Frog Eye used 2xH1s
If you don't try you never find out.

[kotemaori]

Hi Mike,
I am certain that you would be over carburetting, the engines you used as a comparison are OHV and flow a lot more air.
I am using standard H1's on a full race engine bored .180" and they perform adequately, even when revving its a..e off.
H2's don't work, you would possibly have more joy using one single H2 or HS2
Why not try the Kleinig kit with Robs exhaust, some people they have been sold to are achieving 75MPH with a bigger exhaust the only other mod, and those who lack tuning skills are still getting 70MPH+

[RobThomas]

I'm cutting metal for a larger single carb set-up since it will bring down cost and complexity. A single H2, as mentioned, ought to work just fine and they are quite plentiful from Srs 2 and 948s.