Hi, I don't want to hijack someone else's post, but I am also considering a 2x2 TBI set-up. It all seems pretty straightforward except for connecting the two TBI units to one computer (ECU). It seems like using two GM TBIs from the 2.8L V-6 would be just about right for my application for fuel flow and air flow. This set-up would allow me to use my Buick factory dual carb manifold which has much better flow distribution and also dual exhaust than the single carb manifolds.
I'd like to know if it is at all possible to use two GM TBIs with one GM computer? I am planning not to use spark control due to the costs involved in modifying a distributor to work with my straight 8. What options do I have for sensing engine speed? Can I connect to the original distributor if it is equipped with points? Petronix module?