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You sure you got all the plug wires in the right spot and connected to the correct cylinder? I've done that before, when "stabbing" a distributor on my 3.4 swap, and still got it 180 deg out. I cheated and just switched wires instead of pulling the distributor. It's easy enough to get it mixed up, even if you're aware of the issue.

Another thing that can cause your suspected TDC to be off is a slipped bond on the harmonic balancer. As noted in prior posts, you'll have TDC on #1 and #4 cyl's at the same time, but only one of those cyls will be on its compression stroke.

You've got to pull #1 spark plug and stick your finger over the spark plug hole so you can feel compression as #1 piston is rising to TDC with both valves closed. Make a makeshift pointer out of coat hanger wire or something else suitable, once you know you're on the compression stroke, use the tool (in spark plug hole against the piston) to get an indication of the piston at TDC.

Once you're absolutely sure you're at TDC compression stroke on #1 cyl, then you can check your harmonic balancer and see if its timing mark aligns with TDC on the timing scale. If it does, you're golden; if not, you need a new balancer.

You can also check to make sure the plug wire you've designated as #1, is in the distributor in the correct spot, to where the rotor is pointing at that contact.

Once you've got #1 cyl established on the cap, the rest follow; 1-2-3-4-5-6 clockwise around the cap.

If the distributor is installed correctly, #1 cyl on the cap will be in approx 7 o'clock position as you're standing in front of the rig, looking at the engine.

But if #1 is somewhere else, it doesn't really matter as far as the engine's running, as long as all the other plug wires follow correctly. However, having the rotor point to #1 on the cap at #1 cyl TDC (compression stroke) is critical. Ain't gonna run unless that's correct.

Hope that helps, let us know what you find............ed
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