Spent more time on it yesterday. I started by swapping the injectors for the #1 and #7 cylinders. Sure enough, the miss moved to the #1 cylinder. I got the engine up to temp and the #1 header tube was over 200 degrees cooler than the other seven cylinders. (Verified with an infrared gun, great tool)
New injector is on the way, should fix that problem.
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1972 SS 454 Chevelle LS5/M21/12 bolt 3.73 posi
1969 Malibu COPO L72/M20/12 bolt 3.31 posi
1968 Malibu LQ9/4L80E/12 bolt 3.73 posi
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