[Hib Halverson]

My experience has been that, given injectors that are well-matched–and not all OE injectors were well-matched--the bank/bank difference in long-term fuel trim (BLM) was not greatly different unless there was a problem somewhere.

To me, from the perspective of the LT5 being a very high-performance engine, well-matched means a flow difference of no more than 1.5% across 16 injectors.

As for Graham B....now that he's finally arrived here at the ZR1 Net forum, we need to start a thread about country western singing when consuming large quantities of beer.