I heard the newer orange ones are worse than the older ones (& the older ones were so so), reliable somewhat but reportedly pulled timing. (electronically delayed opening the coil pri at higher speeds in effect retarding (pulling) timing). Not sure if I want to go with a pricey FBO ECU but most parts house ones are made in china tho I have used em (standard motor products) & no problems so far. Best would be to go with an HEI chebby module/full 12V E coil. EDIT If I wanted a ECU I would get an OE 4 pinner at a yard or a 5 if you are OK with running a dual ballast.