The SUs (from a MkIII) were on the car when I bought it. The TRF-supplied kit I
bought is specifically listed for a MkIII- the kit for MkI and II have different
part number(s). The TRF part number for the kit I bought is SU111. I found out
tonight that my idle is still a little iffy when the engine is real hot, but it
was 97degrees today in the Twin Cities.
Bob
----------
>From: Douglas Braun & Nadia Papakonstantinou <dougbert@rcn.com>
>To: msp01091@isd.net
>Subject: Spitfire carbs
>Date: Sun, Jul 25, 1999, 6:27 PM
>
>Hello,
>
>Did you swap the original ZS carb for the SUs? Do you know what needles
>they have in them?
>
>I had a set of SUs on my '72 for a while, but I could never get them
>to run smoothly, and I checked for all the usual causes...
>
>Doug Braun
>'72 Spit
>
>>I'm delighted to be back on the road after 6 weeks of puzzling over
>carburetion
>>and timing with the 71 Mark IV. I have rebuilt my SUs (turned out to be
>>incredibly simple) with a "Royze" brand (US made) kit from TRF. (They have
>>their
>>own website at www.royze.com, don't know if they sell direct). The car has
>>never
>>had so much power. I found a lot of miscellaneous loose nuts on manifolds and
>>carbs which weren't helping matters. I also found that a dwell tach was
>>indispensable to get the last little bit of improvement from all the new
>>parts.
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