changed 3 boots and plugs.

A scan tool would give codes P0301 to P0306 identifying cylinders 1 to 6 as being the cause of the misfire/s. I would start looking at the last place you worked on to make the car run better. What ever make of boots or plug wires you used you would image they were designed for your car and should work. There is a company that independent auto repair shops buy their information from that the same information inexpensively to do it yourselfers. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online