Of course it has an HEI distributor. It's not the same as the old 4-pin-module, bigass cap HEI, but it's essentially identical to the big 7-pin computer controlled version, miniaturized.
Stop using a timing light to verify spark. That works as a quick test, but can be misleading as you've found out.
Get a genuine spark tester where the spark has to jump an actual gap. This will verify spark power TO the spark plug, although it cannot verify that the spark jumps the spark plug gap--only that there's enough power to jump the plug gap.
www.amazon.com/dp/B003WZXAWK/?coliid=I3S98D7T1J0RLJ&colid=2VLYZKC3HBBDO&psc=1&ref_=list_c_wl_lv_ov_lig_dp_it
I'm still betting on a fouled plug in #2. There's a chance that the distributor cap is faulty, though. Everything else in the ignition system is shared among cylinders except the plug wire, and you've changed that already.
Stop using a timing light to verify spark. That works as a quick test, but can be misleading as you've found out.
Get a genuine spark tester where the spark has to jump an actual gap. This will verify spark power TO the spark plug, although it cannot verify that the spark jumps the spark plug gap--only that there's enough power to jump the plug gap.
www.amazon.com/dp/B003WZXAWK/?coliid=I3S98D7T1J0RLJ&colid=2VLYZKC3HBBDO&psc=1&ref_=list_c_wl_lv_ov_lig_dp_it
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I'm still betting on a fouled plug in #2. There's a chance that the distributor cap is faulty, though. Everything else in the ignition system is shared among cylinders except the plug wire, and you've changed that already.
