On 24 Jan 00, at 20:57, Shannen Durphey wrote: > Well, wait just a minute. 90-91 vette is MAP tpi, then 92-93 vette is > LT1. > Are you using this on a distributor engine? Use the sy/ty > calibration. Otherwise you have some major ignition dwell/timing > issues to overcome. > Shannen > Yes, I am going to use a distributor.