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  1. LT1 | LT4 | L99 Engine Tech
    My hot rod 60s truck came with an F body LT1 and Hooker long tube headers. The headers are jutst about rusted away and it was impossible to change #6 plug without pulling the header back.. I dont drag race and RPMs are seldom over 3500 so I dont think the long tubes are doing much good. I’m...
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