If your thin on the tube side this is cheap easy backup, and most holes need very little prep.
I epoxy the heck out of them and if they are tight, leave a 1/2 inch and use a wood block and a bfh, then trim them.
Hmm...well, a few years back when I was really putting some serious time into porting these I wish I had this info (re: tubes) as I would have most likely tried to do this on my own. At this point in time I am really just looking for small (read: easy...LOL) improvements as I indend to start by W2 stroker build this winter and am really only looking for another 1-2 yrs use out of these heads...certainly not a max-effort type either.
Good info to have, part number/brand name saved!!!
