Used one of Ant's chips in my 320 Cab & I've only got one thing to say......
do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it, do it.
Ant is God when it comes to E30 chips.....end of story
PS - My 320 ECU with the chip (+ a BTBB) will be up for sale shortly as I'm doing the M50 conversion if anyone's interested in buying.