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#25
01-15-2016, 02:37 PM
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Re: 1970 Z28 intake, carb, heads and air cleaner find
Back in the early seventies I worked for Cal Corp aero marine.We raced cigarette boats with twin LT1s.The heads we used were straight plug 492 right from the gm parts counter.They made great power.We switched to 292 angle plug they made a big difference.
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1967 Chevy II Super Sport 
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