Review on Standard Motor Products FJ504 Injector by Edward Taylor

If you have a 1996-2000 GM truck with a 5.7L engine, you need to buy these fuel injectors. Replaces factory poppet injectors that cause misfire and hard starting. Also, they can spill on you! True plug and play conversion to true traditional multiport injection. Not for beginners to install, but with some knowledgeable help and some YouTube universities, most of which have mechanical knowledge, it can be done. I've made 5 of these and this is the only way to replace the factory injectors. If you are misfiring, be sure to check the compression in case you need to do any valve work. Old nozzles can clog valves and cause valve problems. I had bent valves because stuck valves stayed open and got hit by the piston.