Does ASM still make LT1 headers? They were 1-3/4" mids that I think George made 700 rwhp with so they don't rob too much power. The Hookers don't sound like too bad of a deal but you might be just as well off keeping your Macs and spending the money somewhere else.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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