Attempting to get my carbs tuned on a TR3 engined +4. The piston liners have been replaced from 83 to 86mm (1991 to 2138cc). Still running freshly rebuilt stock H6s, currently they have the "SM" needles in them but I'm running very lean through the rev range after the displacement bump (no other leaks). I would like to switch to a richer needle, and from the limited information I have found the "RH" seems to be the way to go. Does anyone have any further input or other needle suggestions?
Thanks and happy motoring,
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