has anyone herd anything good about the cylinder heads ported by DH racing. im lookin into buying a d16y8 ported head with the stiffer valve springs for my fully built y8 turbo motor. they wany 650$ for the head and another 175$ for the springs. is this worth buying or is there another company i can possibly get the same quality for cheaper???

 

I'VE USED THEM BEFORE DOES REALLY GOOD WORK AND WILL HELP WITH ANY QUESTIONS.