While driving my 83 245/B23/M45 back and forth to work this week a slight miss earlier in the week has gotten worse. Today I checked all vacuum lines and electrical connections at the usual suspects (hall sensor, throttle sensor, ICU, IAC, 25 amp fuse and connection at the battery, all seemed good. I needed to torque the new knock sensor to spec so I pulled the intake manifold off, torqued the knock sensor, cleaned the manifold & reassembled. I went ahead and pulled the plugs to inspect and they all seem fine, take it for a spin, no change at all. The car misses really bad when cold and gets better after ten miles or so but never goes away completely, if i'm going uphill or try to accelerate past half throttle it misses. Any suggestions.