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[wbdvt]

Hello,

I am hampered that I don't have PO info but it does look like the carb was rebuilt and there is a new fuel pump.  The only way I can get the car started is with a shot of starting fluid and then it won't idle.  On a test run with it, there is a lack of power.

Here is what I have done, so far:
1.  Changed plugs. Original ones were the wrong heat grade.
2.  Plugs are covered with dry soot, so either poor spark or too rich mixture.
3.  Verified timing marks and rotor position by removing valve cover, plugs and rotating engine by hand to determine TDC
4.  Timed best I could but rpms were like 1500 to keep it running.
5.  Distributor is an Allison XR-700 and lined up optical slot with rotor position to fire.
6.  Tested spark.  Not having done this is decades, I thought it looked weak.  It was more yellowish than blue.  Yes??
7.  Compression check.  All 4 cylinders were between 150 to 155 psi, so okay there.

Some other details:  ZS 150 carb with a manual choke but if choke is closed then engine shuts down.  EGR missing, so the emissions system is not really in place.

So, what else should I try?

Thank you in advance to all who read this and reply!

[Autoquick]

wbdvt;
Sounds like you have a real issue with the ZS 150 carb.  The starting fluid is a really bad idea.  Which tells me that the idle fuel mixture is incorrect.  I wouldn't dwell so much on the timing and spark so much as the carburetor and setting the idle.  Making sure the fuel deliver and set screw for the idle jet is clear and correct.  Making sure no other leaks on the intake to the engine.