bptahoe- The Packard wires are a step down from Delco, Same wire with different boots. Packard was the OEM MFR, don't know if they still are. About 1/2 price of Delco and last. I have installed many of the crab distributors from United and like them, But you MUST only use DCR820X cap, others blow out from coil terminal inside. If you change dist you will likely REQUIRE a scanner to set timing. Many cheap bluetooths work to set cam angle offset or you set a P-1351 code. BAFX is one about $20.
I've also run into chineese AC plugs that didn't last, Recommend NGK now.
I keep a couple fleets of this vintage alive now as work trucks, a few at 300k miles+. So what works is most important.
Get a fuel pressure gauge with a hose long enough to reach the windshield, A spark tester, Multimeter And Scanner then you can do 95 percent of the items yourself. RockAuto is your friend! Good Luck.
Exp500- Thanks again for the info. I don't know how I've missed the 'Packard' name seeing as I have always been a GM fan. I guess that just goes to show that you can always learn something. I did order the DCR820X cap/rotor last night, as well as a full set of NGK G-power 3403 plugs. I didn't see any reason to get the crazy expensive NGKs since I'm essentially stock. Hopefully those items and a set of wires will cure my issues, but if not, I'll have to look into another dizzy....hopefully not though. I bought this Tahoe in 02' with 59k miles on it, so I've had it 19 years now! Dang!!! It now has 127k miles on it. It's almost broke in. I've replaced the fuel pump, and had the intake manifold gaskets replaced twice due to coolant leakage. I also replaced the spider injectors with the upgraded design. Other than that, I've not had any trouble with it at all, other than bad dizzy caps(and maybe an annoying soft brake pedal). Over the years, I've taken on all of my own mechanic work. My bluetooth OBD2 reader will not talk to my Tahoe for some reason. I'll look into the BAFX. I've got fuel check gauges, spark testers and meters, so I'm 'ready' ... haha. I tinker with a lot of later model VW's, and have done timing jobs and transmission swaps. I've even done one auto to manual conversion. All the while, my Tahoe has sat by quietly and needed to repair, just to be driven. Oh yeah, I know RockAuto very well. Haha. I'll drop back in and update once I get the order delivered and installed. I'm a believer in passing information on. There's not much worse than a thread discussing a problem, only to never post the end results.