use a 4 1/2 grinder to grind the heads down, and if they dont come out after that drill them out (ALOT easier to drill them out after you grind the heads down)
------------------
My Truck pictures
www.xframeimpala.com
68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET"
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350
IM me on aol SN= SHAGROLET