Quote: according to the D dart specs, the 273 heads are basic stock heads..
so I am assuming the valve sizes are the same as a 68 318??
The stock 273 had 8:1 cr The commando 4 bbl had 10:1 cr
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Dan
OK so i jese read the stories from the website posted, one says they had larger valves, the other said they didnt..or did only the 50 or so drag cars get the performance heads and the street versions got the stock heads??
