to the OP:
1 No the data logging cable does not give you the ability to tune in real time, you need an emulator like an ostrich for that, the data logging cable is just for data logging which you need a program for.
2 if you use a pm6 ecu then use turboedit (this is what i did on my b16) but BRE was not available back then for the pr3 so I would go that way then you can tune the vtec map independently which will work much better
3 you should really just go obd1 and use ectune it is soooo much better, this will only cost you $300 for the ecu and the jumper harness, plus if you decide the tuning is over your head most shops won't touch a program like bre or turboedit because they are considered way old school however it should be easy to find someone to tune an obd1 program like ectune

cool. Iv already ordered the basic obd0 to obd1 conversion harness. I know I can swoop up a p28 pretty easy for a bill. some one was saying I need to get a obd1 dizzy too. so is that everything? and why do i need a obd1 distributor? and do I need a plug harness to convert to obd1 dizzy? sorry I know alot more about obd1 tuning this is my first 88-91 chasis car, I never wanted a ef but I got too good of a deal to pass it up and its growing on me.
I really really appreciate all the help guys

New Page 1 if you can use a soldering iron, which a blind monkey can do, then this is super easy and you can log it