Yes the 72 D2VE heads are a one year only open chamber head which is detonation prone. I would strongly suggest finding a pair of early small chamber castings C8, C9, D0 or D1 closed chamber heads. Assuming you have a stock 72 bottom end this will raise your static compression ratio to approximately 9:1. D3 heads will work as well but they are large chamber and your compression will be 8:1 or less which is not good if you have performance upgrades in mind.
Please don't take offense but it seems you are short on experience and long on issues with this engine. Do you have someone with some mechanical experience you could call on to help you sort things out and diagnose the miss?
Last edited by TommyK; 10-14-2012 at 12:38 PM.