I have some PRW 1.8's with guide plates and all but 2 studs. One broke off in my head due to poor tech support specs can't find the other guy. If you want to check it out before you make a purchase we could put some on there and check some clearances and PR length. I've even got the UMI valve cover spacers just sitting at the house right now. A little look won't hurt, i think i have a new set of valve cover gaskets to so you wouldn't have to buy anything just to see if you have good clearance