im looking foward on purchasing 550cc injectors for my car now i saw on ebay some Lucas 550cc injectors for $200, $215 shipped and the RC injectors for about $280, $295 shipped i know these pices are still really cheap because at the performance shops around my house they run for $90 each RC injector and at another shop they wanted $140 for each RC injector and when i read about them i keep reading the phrase "peek and hold" when i read about RC but my friend told me they are all the same 550cc are equal to every other 550cc so my question is should i order the Lucas or should i wait and save a little more and go for the RC what do you guys think