OK.

Replaced the fuel filter and pump today, and nothing changed, except:

1. The idle fluctuations are lower... as in the RPM's that it ranges from is slightly lower.
2. Now the car is smoking from the exhaust... which is wasn't before. It's a white/black tinted once released smoke... hard to describe actual color.

Now what? I'm doing plugs, wires, and MAFS in a bit... but any other suggestions???