Just found out that the cylinder heads,on the lowly 99-up Mustang V6,OUTFLOW the 2V 4.6 GT/Bullitt heads. The V6 heads flow something like 200 cfm on the intake and 140 on the exhaust. Never thought I would see the day when the heads on the higher performance engine option,get out gunned by the standard 6 banger!!! WAKE UP FORD!!!