I know were I can get all the TBI stuff off a wreck pretty cheap but will my stock 71 distrubtor with a Pertronix points eliminator be a clean enough signal for the Computer? Howell fuel injection said they can burn a new chip if I need it but I would need a clean tach signal. Has anyone used a Pertronix setup with TBI? If not would a later modle Toyota dist. be the way to go?