An ACDelco EP381 from a 96 Vortec works well. I have an 18 LB spring that I can run between 15 - 20 LBS. I ordered it with my bored 46mm TB but, I'm sure you can find one on FleaBay or Amazon
https://www.ebay.com/itm/26451283730...wAAOSw2xRYWVJj
An ACDelco EP381 from a 96 Vortec works well. I have an 18 LB spring that I can run between 15 - 20 LBS. I ordered it with my bored 46mm TB but, I'm sure you can find one on FleaBay or Amazon
https://www.ebay.com/itm/26451283730...wAAOSw2xRYWVJj
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