I am going to be running one with the Terminator X on my rebuilt Olds 358. Is it best to run one from a 88 to 90 Olds 307 or something else, like say a mid 80's to 90's sbc? I know the TBI sensor threads right into the water drain like 307 model, LS have different threads. They have many years and motors for each sensor. Is the sensor to work with the spark controller or the make of motor? The good sensors are all similar in price $30 to $60 each. The $25 and under seem to be junk. I will see what Holley recommends or supports.