plenum pull troubles

[a1991zr1]

I have pulled this plenum three frickin times to fix vacuum leaks and starter the third time crank no-start was a dreaded bent pin now it starts and runs great however saw white steam out of exhaust and immediately shut it down. no water in oil and plugs are clean. i had some antifreeze get in a secondary forgot to drain the third time shop vac it out and before starting pulled plugs and blew out cylinders by turning it over. what the hell have i done. it finally was idling at 704 and idc was at 43 not zero and she runs great. please tell me it didn't totally screw up as this was my inheritance and right now i am sick to my frickin stomach.