alrighty. i have a 90 civic DX hatchback running a B16A with OBD0 PR3 DOHC VTEC ecu. i want to run hondata, however, with the pr3 ecu, you can only us the stage 2,3,4 systems. and the max rev limit with hondata and these ecu's is 9000rpm. plus, the rev limits and vtec x-over can only be changed by using a push button contraption. however, the p28 ecu is fully programmable through hondata's romeditor. PLUS, you can use the standard fuel and ignition tables/maps from many different ecu's to add to the degree of tunability. so, now after all the mumble jumble, my question, what all would be needed to change my car over to obd1... -P28/P30 ecu -OBD1 DOHC VTEC Distributor -Adapter Harness has anyone done this or have a similar setup? thanks for reading.