92_RSCamaro

Its the DDL (Diagnostic Data Link) and I know my 92 Camaro RS has one also called Consult port in Nissans. Reasons I'm asking is you can monitor you air fuel, rpms, speed, timing, ect and adjust them with programs when hooked up to the DDL. Since I will be doing my LT1 swap sortly monitoring and chaning air fuel tables on my tune would be awesome. Here's a linkhttp://www.gtr.co.uk/forum/upload/sh...t=31619&page=4 that explains it more. Does anyone use this to tune or monitor there car?