There are many others here with more alcohol experience than I have, but I'd start by leaning the barrel valve as far as possible and still take throttle.
Based on my very limited Terminator experience, the whole setup sounds too rich unless you have a very snotty 388. My 406 had an O pump, and ran best with 29 nozzle jets and an 88 pill at high altitude. Best et in a 2850lb 72 Chevelle was 10.28 @ 132mph in 8000 ft air.
It might be best to contact Ron's about your setup....