I've been reading up on the GM Delco ecm lately. It will support DIS and seems to be infinately tunable in real time with Kalmaker software.
Bad pionts, not sequential, Holden.
Good points, Will take std holden sensors,(from VL upto, but not including, Gen3). Real time tunable with cheap laptop. $1300 for ECM with kalmaker software.
Go here to check 'em out if interested http://www.kalmaker.com.au