I know I probably need both but cash allows for only one or the other, which would make the biggest difference right now?

Your rear shock are probably shut. Just buy AC Delco gas shock. They're not expensive and that's what comming with a WS6 performance suspension.

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89 L98 GTA
- Custom made air induction
- Ported plennum
- MAF screen removed
- Headman Hedders
- Dynomax 3" catback
- Ultra Flow weld muffler
- TH700-R4 with vette servo and Superior shift kit
- Mobil 1 Synthetic Oil
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