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Old 06-10-2022, 02:42 PM
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64speed 64speed is online now
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Join Date: Jul 2003
Location: Westminster S.C.
Posts: 6,081
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My engine builder specified 20/50. I am using Lucas for break in and then will switch to Valvoline ZR1. Any other suggestions?

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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior.