" From: Wrambler242@xxxxxxxxxxx " " Have you looked at the rugged ridge header for the 2000-06 4.0L's? " Near as I can tell they are not equal length, perhaps they are dyno tuned? just peeked. the front 3 don't look bad... more likely they squeezed what they could into the space they had to work with. bet it's designed to drop into place of the iron manifolds. " -- " Mark Price " " -------------- Original message ---------------------- " From: adh@xxxxxxxxxxxxxxxxx (Sandwich Maker) " > " From: Wrambler242@xxxxxxxxxxx " > " " > " Idealy the single cylinder pipes would all be the same length to start with. " > " > that would also be the peakiest. since the front half and back half " > are even-firing 3s, grouping each separately then combining with a " > y-pipe allows you to set different lengths, spreading out the " > cross-scavenging peaks. 'tri-y' headers always give the broadest " > powerband. " > " > combining the iron manifolds with a y-pipe would be an interesting " > compromise. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list