Tunnel Ram Tune

You guys argue over the effect of air bleed at circuit initiation like its a yes or no.
The reality is that it depends.
Before messing with the HSAB to tweak the main circuit's start up characteristic, first make sure its doing its job at the top end.
Then with emulsion correct and HSAB very close to providing the correction needed, a small increase in size should start the mains a little earlier and not cause a lean drift at high rpm WOT.
However this depends on how the air is bled into the main well.