Here's the story. I overheated my 86 240. Since then I have replaced the blown head gasket, had the head reworked (a full valve job and milling) and put a new timing belt on along with all the new gaskets and seals associated with a head job. The machine shop took off a lot to make the had straight (.018). Since I put her back together I have fixed the temp guage (comp bard bypass) and have gotten her to run. She won't run right unless she is at 18-22 degrees before top dead center. She runs stronger than ever (especially for a 330k mile car). But when I get her warmed up she acts like she is flooded. What is going on here? I felt like a jerk tonight at the gas station. she sputters and is very reluctant to start and there is a strong odor of gas. she continues on this path untill she finally starts (I had to mess with the timing and retard it a lot) I rev her up a few times and clear the cyls. Someone said that it could be the fuel pressure regulator. is there a way to test this device? I immedaitaly suspected the coolant temp sensor so I performed the chilton's test sand it was within spec...I have not checked the sensor since it has been running after the rebuild. This damn brick is going to put me into an early grave. I would rather not buy another pressure regulator unless I am sure that is the culprit. Additionally I was told that if you blow a head gasket..as I did..that coolant can ruin the O2 sensor. could this be the prob? I am totally lost and at my wits end. This was a big project for me to do on my summer vacation and to be this close to success and still be undrivable bites. Please help...if you can. thanks