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  1. martimagico

    93 4.3 TBI in a 90

    Hello all, I have a problem that I can't find an answer for..... I own a 90 single cab SB chevy with 4.3L 5 speed stock. I am keeping the 5 speed tranny. The motor has completely ****. I bough a 93 gmc single cab LB with 4.3L auto OD stock. although they look identical, there are a few things...
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