High quality lifters???

446DART said

Installed them! And yes. there was only minor surface imperfection, not holes! Works nice now. I´m very pleased with my combo: 440 030", ~10:1, 452 heads milled to 69cc, ported in 270 cfm/0,5" lift, 67% ex, std size ferrea+K-line. comp xe 274 + magnum rollers, Torker II+750 speed demon, 2" CPPA headers+ 2,5" pipes, dynomax. throtle responce exellent, and seems to run well, idles 650 rpm. Waiting summer to come and tracks to open again(april).

Click to expand...

Keep an eye on them, there should be no imperfection on the base of the lifter, they should have a nice swirl pattern, hopefully you'll be ok, BTW, who did your heads, how much was milled off, what kind of piston do you have, how far down are they, i would think with 69cc and close to 0 deck you would have alot more then 10.1, my 906s are 84cc and pistons are .009 below deck, i have 10.25 comp. with a .039 1009 gasket. my bore is only .020 more then yours.