anyone used one of these for some minor changes in the mixtures??

for about $200 second hand for an SAFC-II, they have a fair bit of flexibility, load points per 500rpm, easy to use..

there mostly in the nissan/toyota crowds.. can be used for Map and AFM.. just to give that little bit of adjustment for mild mods..

thoughts?

Yeah I'm fairly sure EuroAccord13 used one back when he had a Magna. Just make sure they support the Karman Vortex style AFM and you're away.

they support anything that uses a voltage as far as i know.. more air goes through (or the more boost it sees) the voltage increases.. the SAFC uses that signal and increase/decreses the voltage where you tune it to.. kinda had to explain.. but it's quite simple really..