I did my opti about 6 months ago. I went with a GM one, Taylor High Performance Wires and Bosch Platinum Plugs. The car now runs perfect.
Are you going to be doing the work yourself?
If you are, check the status of your timing cover. If its leaking oil you might wanna change that out since you have to take off all the same crap anyway. Also, depending on the age of your waterpump, you might wanna do that too.
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1989 Formula - 305TBI/700r4
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