If you are going to mod, I strongly suggest investing in a scanner that will read knock retard.

Yup, what he^ said.

Ive been looking at buying my own Snap on Brick scanner, Found some on ebay for around 350 or so, what other scanenrs are good for these old cars? I dont have much money right now, i also thought about one of those setups that use a usb connector to a laptop and a program on the laptop that route is only like 40-50 bucks has anyone ever used a setup like that?

The Snap On'* are fairly good scanners. Matter of factly, they are probably the best ones besides Tech 2'*.

I guess the main question would be is, what do you want the scanner to do? Are you only interested in just logging/scanning data? Or just checking/clearing codes? If it'* logging/scanning, then you need a laptop. A laptop is much faster at reading all data and converting it to data that you can read and understand. Handheld scanners just don't have the processor power to do all that at at DECENT frame rate.

Now, if that is the route you want to go, you need to find a decent OBD 1 data connector with software that can do that. I'm not sure if that stuff is made anymore. Someone else here may be able to add more info.

Now, if you were 1997 or newer, you could use HPTuners. Well worth the $500.