[MOTORHEAD]

Initial tuning my weber set-up on 452 FE with jets from inglese seemed rich. When adjusting idle mixture rpm picked up when leaning, but engine overheated at idle ! Installed A/F meter and confirmed rich running at all eng speeds up to 4k rpm(didn't run it faster) Initial timing 17-18 deg, max 38 deg all in by 2800.
Tuning should start with idle circuit, but leaning seems to increase heat too much. Any ideas?