" From: farna@xxxxxxx " " I seem to recall reading on the strokers list that they found out the " cam for the 87-90 was the same as 91-95 (OBD I). The difference was in " installation -- the 91-95 was retarded or advanced four degrees from " the 87-90 to improve low speed emissions and eliminate the need for the " EGR. I don't recall which, but I think it was advanced as the torque " curve moved up in the rpm range also. nit: retarding moves the power curve up; advancing moves it down. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought