All high pressure fuel lines are NOT created equal. I have been battling a very unusual "part-throttle bucking problem". I have troubleshot and fixed many problems - all which were real problems on this car. But I have never been able to solve this underlying "bucking" problem. Yesterday I removed my fuel injectors to make sure their spray pattern was fine, and their output equal. Both were OK, however I noticed this dripping problem on all injectors, and a slight delay on their engagement. When I bought this car, one very noticable item was the brand new, high-pressure silicone (bright blue) fuel lines on all of the fuel distributor connections. The hoses are clearly embossed "250 PSI, high pressure fuel". I guess the guy before me felt it necessary to replace the lines, perhaps he had a problem. I never gave them a second thought, feeling very comfortable that the car had brand new high pressure fuel lines. Well, I found out - BY ACCIDENT - these lines are very flexible. So flexible that you can squeeze one and actually make the fuel injector discharge a spray. THIS IS NOT A GOOD THING. Anybody versed in hydraulics will tell you that soft, flexible lines will actually "dampen" that pressure "snap" that is essential to make these all mechanical fuel injectors work properly. So what happens... You press the accelerator, air flows in, the air sensor plate moves down, the piston opens the fuel distributor, fuel rushes out to the injector...and the injector sprays...but only after it has slightly expanded the flexible fuel line and built up pressure to open the injector. The opposite happens when you let up from the accellerator. Your fuel lines can become a "Baffle" eliminating the hydraulic "snap" that is so important to the injectors. The moral of the story - Don't use anything but the original semi- rigid polyethylene lines (or whatever was factory). I have been battling this problem for months now. Who would have guessed it was this??? I hope sharing this story either helps someone fix, or prevents someone from making the mistake the owner before me had made. Eric Vin# 5557 Dunedin, FL ericp@xxxx