I need help can not get a hot spark in my tbi 4.3 done all i know to do.
You may want to look into having your ignition control module tested. It controls your ignition coils output via reference from the pick up coil which is located inside the distributor. It basically acts as a "switch" turning the coil on and off at the right time. I don't know what all you've tried but it seems to be the problem. If you have an autozone near you they can check it for free.