Thanks Walt, good reading (for me, anyway) Mike V > Two 2BBL TBI's means 4 TBI injectors in total. Each TBI injector ideally > requires its own 4/1 amp driver for optimal operation. The '749 has a total > of only two 4/1 amp drivers built-in. These could be used to drive two of > the propsed TBI injectors, but what do you do about the other two? > >----