I have recently acquired an incomplete 312 build...The gentleman I purchased from had been gathering parts and seems most are complete. The block has been machined .60 over included sonic testing, with cam bearings installed. The deck set up with pistons.004 in and using 10.00 cc head gasket with the new dome forged pistons milled from 10 to 4 and connecting rods from Probe Industries. The crank had been ground 20/20 and all the assembly balanced including damper. Looking at the cam grind sheet from it appears to be set up using the smaller 1.43 rockers for some reason although he supplied new 1.54's. My question would be should I use the new 95# valve springs he also supplied or would the stock 70# springs be better/safer? I am just worried about cam wear and break in mostly.

Regards,
Gary