I have redone plugs, wires, air filter, oil change in last 4k miles, new thermostat (and boy did that help), coolant system flush (yeah I put dex back in, trying to isolate some problems unrelated to coolant). Im doing another oil change this weekend, and even have the new fuel filter ready to install.

What would you recommend as safe to clean the MAF? Also, are there any spots known for vacuum leaks I should check out first?