Having changed plugs, wires, dist. cap and rotor, all vacuum lines, etc., I thought the tank might be the problem too so I dropped that two weekends ago. Surprisingly it was pristine inside. I was shocked. Literally zero ruse or dirt or sludge. I did find the bottom half of a locking gas cap in there though! I assume that fell in there years ago and has just been rattling around. I removed all of that and put the tank back in. While in there I put in all new fuel lines and made sure that there were no blockages or vacuum leaks in the system all the way to the fuel pump. How have you found the CA system for getting these trucks CA smog legal? My scout is a registered Non-Op vehicle here. Will I be able to just go to a smog shop and if it passes, re-register an an operational vehicle. The last 2 hurdles for me are a small vacuum leak in the Air Pump Diverter valve and a bad thermostatic air cleaner flap actuator that opens and closes the door at the end of the air cleaner that pulls in either fresh air or air off the exhaust manifold. I cant seem to find either at a parts shop. I may have a new thread here shortly asking if anyone has a source for either part.