What do you mean by "red labeled" . . . Bosch red (body color) coil with label that says it requires a 1.6Ω resistance in +12V side? If so, hope you either kept the stock GT + coil wiring with the stock resistance wire or provided the required resistance for the coil in "run" mode.bosco said:I'm beginning to think this is an ignition problem.....ie. possibly a weak coil. I am running a Crane 700 ignition system and wondered if anyone has used one of Crane's coils. In one of my Z-car catalogs they show Crane PS-20, PS-40, PS-60 and PS-91 coils. Has anyone used these or know about them. Currently I'm running an older Bosch red labeled coil.