also do you have the timing advance canister on the dis. connected? try disconnecting it and plugging the port on the car and see if it still missis at 2100.
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66 mustang-292-Holley 4160-World Castings Windsor Sr.-Hooker super comp headers-MSD box & Coil.3.55 gears. B&M Z-Gate-Black leather racing seats with 4pt harnes.
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