Running rough and smoking when Rev'd up, custom project?

Hello,
I have a interview that might not be able to be answered on the the network, I have an 84 Chevy Citation, I own dropped a 3800s1 N/A in it but used 3300 components to generate it run (injectors, wiring harness, computer, ignition module, crank sensor, reluctor plates) My problem is the engine runs fine if truth be told, there is no miss, no pings or knock..actually sounds great. But it have a steady shake/roughness to it that I cant figure out.. Revving it up increases the shakes but beside no bogging or misses. Also when revved up passed say 2500rpm it blows blue smoke out the exhaust for a few second then it is fine.. The exhaust smells rich but I cant give the impression of being to figure out why its running rich. Any concept would be highly appreciated.

How regularly should grease be changed surrounded...



Answers:    These cars of late seem to be unpromising. If you have not be into the engine, this may be one with a counter be a foil for shaft. They tend to come loose from the timing sprocket. The blue smoke says grease is burning in the cylinders. May be time for a start again

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