I was thinking of screw in studs. I haven't had a chance to talk to the machine shop yet but I'm hoping it's not too much to pull em and tap the holes. Cutting for the larger valves is about $120 so that's not too bad. Chevy valves are pretty cheap at around 6 bucks for Manleys. To make a long painful story short, I figure about half the cost of Windsor Jr. heads and an equivalent flow rate. This is a winter project along with the Cleveland so I'm not in a great hurry. The boy is slobbering pretty heavy for them but it's fun watching that. Thanks for the help.
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1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet.
Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer.
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