Lean Out Valve for Alcohol questions

Baseline if i recall the seller said 25%? Not sure, 26 years ago. I went with a Terminator four throat, had been running a dominater carb, stripped of boosters, etc. my converter is a 9.5, flashes to 6400 but is tight enough to need an 1800 rpm in neutral, and the converter pulls it down to 1400. Any less idle and i risk it hesitating or stalling while trying to stage. Cam is pretty radical. Tight lash 284/296/114.