I disagree. Tuning the mix will vary O2s. There are definitely BTU's in the alky. I believe that the Max Effort even has an option to pull out fuel for those wanting to run high quantities of methanol (117 octane if memory serves).
From my own experience, albiet limited, my O2s dropped significantly when I went from 100% to 50/50. I was still able to maintain the same boost but did get a little KR at same mph that the o2's hit min (~750). SOP performance seemed comparable.
Anyway, can any chip guru's fill me in on MAF feedback use at WOT. Even the effectiveness of the stock chip at below 255 gm/s would help. I recall from the old Thrasher site that they trick the ECM for over 255 gm/s by calling for a ridiculusly rich A/F ratio, so I assume that MAF feedback is used at WOT. But is it effective and will it cover a wide air flow change liek 16 psi one pass and 22 the next with no other changes.
Tom Miner