05-17-2021, 10:37 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Out of curiosity I pulled the spring specs for your 770 just to see what it originally came with out of the box (knowing that the carb guys have probably monkeyed with it). Of course Holley would list a stock spring color that is different than every other color in its rainbow of choices in the vacuum secondary spring collection. 
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