[T3] A question of unequal RH and LH carb jets

[Chris Wright <Christopher.Wright@Sun.COM>]

<x-flowed>I addressed this to the T34 list but thought it might provoke some 
answers from you guys too.
Ive just changed the jets in my 64 32PDSITs from the original 1500S 64 
model to match the 1600 single portrebuilt engine I now have .  That is 
23mm venturi , 130 mains and 240 air correction jets.  These AC jets 
were much too big and it died every time I put my foot down.  So I 
refitted the 180s originally on it.  This was better but still had a 
flat spot.  Changing the AC jets down to the later twin port 150RH and 
120 LH fixed it and it runs beautifully.  As the LH 150 air correction 
jet should be matched to a 132.5 main jet in the twin port engine, I 
changed the main to match, but it didn't like it.  It ran too rich on 
the LHS and felt lumpy, so I changed back to the 130 main again.  It was 
great again.  The best it's ever run, with loads more power than before 
and no jerkyness.
Now the questions:
Question 1:  How come the 240 air correction jets which should work 
according to the specs, didn't?
Question 2:  I thought the change to different jets in RH and LH on 
later twinports was to counter the hotter running of the LHS by making 
it richer.  If this is true, why would a weaker Air Correction jet be 
fitted as well? 
Question 3: If I have a 150 AC jet on the LHS but not the richer 132.5 
main jet, am I making the LH side hotter still?  Should I fit 2x 120 or 
2x 150 or even swap the 150 to the RH Side and fit the 120 on the left 
to make it richer?  Or doesn't it matter?

Any experts out there who can answer these questions for me?

Rgds chris


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