I meant 360 crank degrees above - sorry. The devil is always in the details. That firing order would not be a good candidate for single channel batch fire port EFI in an engine with siamesed paired intake ports. The valve events in any given "shared" intake port are unevenly spaced, causing potentially uneven fuel distribution in a situation where the injectors are pulsed every 360 degrees of crank rotation. Looking at the front port for example, intake #2 opens 640 crank degrees after intake #1 opens. If the events in that port were evenly spaced they would be 360 crank degrees apart. The intake valve with the longest "dead port" time before opening would potentially get the most fuel because the injectors are firing every 360 crank dgrees. That points to needing a throttle body injection system instead. TBI systems are okay for low boost situations, given a boost referencing fuel pressure regulator. Hmmm, that plain vanilla V8 sounds pretty simple now <smile>. MV
