Interesting how those posts show back up,in a hurry.Actually stroker,W2 s were on my want list,no go.I went Eddys tweaked,280 @.500 to .55 lift.That is where that 260@ .050. 106 hydraulic came from.Idled nicely at 1100,5 inches of vac.I appreciate honest answers,that is why I pointed this at you.Textbook means nada,without real world,common sense back up.Thanks.