Hi there, my set-up is as follows: 88 supra, 7mgte, 5 spd, ~15 psi on 54 trim ct upgrade, balanced stock 440cc injectors, walbro pump w/j-tube bypass, stock fpr, 3" exhaust, hard pipes and aftermarket i/c, original maft w/new 3" maf, innovate Lm1 Wideband w/bosch sensor mounted at the bottom of the dp. This issue I'm having is this: when i roll into boost from 2k rpm in 3rd or 4th afr's stay safe and consistent @ high 10's low 11's. The problem is that sometimes but not all the time, if I roll into boost in 2nd gear, it seems like the maft or ecu itself doesn't respond quickly enough to the car revving up and it's very lean i.e. 14-15:1 and I've heard audible detonation on a couple of occasions. Has anyone had any experience like this with a maft or other piggybacks? Any input would be appriciated, thanks.