hey guys, just a quick question. assuming they are original, would D3VE A2A (73) heads require the use of leaded fuel? if so how much do those additves cost and and if you went without them...how long would it be before it burned out the valve seats and guides?
Don't know why nobody has answered you. I am confident in believeing that it is a unleaded motor. In 1971 Ford and Chevy started dropping commpression and power thereby allowing for unleaded fuel. Chrysler did the same in 72. I have a 73 429 myself by the way.