Be my guest, this is why I shared it. Steve Dulcich had this problem with a 318 and I suggested this as a fix. He called me up and he published this fix and some pics I took in an issue of EngineMasters Mag. It works so well I do it on almost all engines with a #3 main thrust--even Fords. Use a small bit, I think I used a 1/16" the first time and then moved to a 1/32" but it is scary , you don't want to break a bit in that awkward position. J.Rob
