recently just bought this 95 Z28, the car had a burned plug wire, we replaced the wire, the mis-firing still occurs.. started to drive the car after changing the wire, ran hot, noticed a burning wire smell coming from the right side of bottom of block, assuming fried the starter wire.. but, white smoke was coming out of the exhaust at a pretty good interval... clouded ... purewhite, now.. when this usually happens, I would assume the head gasket let go and antifreeze just running out through the exhaust? does this all make sense?

Sounds like it could very well be a head gasket. Did you check the coolant level? Bubbles in the radiator? Did you do a comression check?

Ya I was thinking a head gasket or even maybe a cracked head or cylinder wall.