I imagine upgrading the AC system in these old cars when using an LS is much cheaper than running a vintage air setup? That's on appeal to me. I'm torn between sticking with old carbureted Pontiac vs an LS setup. Right off the top I feel like a guy could save a couple thousand with an LS by using the AC setup they already have, plus headers are much cheaper compared to my only option of a 1k pair of Doug's headers.
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