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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
69 351w heads are great a biiger int/ex valves and port and they flow as well as a few aftermarket heads..around 215 int side..i seen it personally on flow benchs....1.94/1.6 back cut valves one piece stems and ya have great heads..even unported with big valves back cuted for flow on steems make a big improvment..