Originally Posted by davidnormanuk

I was running a a decomp plate on my standard RST engine without any problems at all. Had to use it as head had been skimmed too much. You wellseal the plate to the block and then use a standard head gasket on top of that. I also put wellseal on both sides of the head gasket with every engine I build. I got mine from http://www.ferriday.co.uk/ did the job superb.