Review on 18mm Bolt-Style Top Dead 🔧 Center Stop by COMP Cams 4792 by Brian Malith

18mm bought by mistake, 14mm found locally, seems to work, used at BBS, spark plugs "flat" on this engine too high compared to the engine angle, so the plug wasn't screwed all the way in and touching the plunger, but I took a bit of all the threads and it worked fine. than maybe 2 full turns, although I'm not sure if that matters, this part was still a good start for not doing it yourself.