i think they are like 10.25:1 compression on a 400, i run them on my 455 with sunk top pistons, from what i understand all the d-ports run pretty close on the flow #'s but i'm sure someone will know alittle more about them than i know
i know they are good 4 barrel heads with 2.11 1.77's and have screwing studs and work will on my motor with a little home porting!
[ August 01, 2002, 08:52 PM: Message edited by: 78lemans ]
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