I installed a set of new 90 lbs DW Injectors (16U-00-0090-8) in my built LSA engine, the engine is very healthy and has put down 573 wheel hp, but it idles too rich and the tuner has tried to lean out the idle with no success, the highest AFR is around 12.5, I took it to another tuner and he said the same thing (both were reputable tuners with many years of experience), is it that hard to get these injectors to spray fuel in small droplets at idle??? I need to hear what do you guys think about that.