I already got the big one done as I just got my new R3/ Indy head 408 , thrashed to get it ready for yesterday ( last test and tune of the season ) and found out what I already knew that the 4.88s are way to much gear the 408. With 50 more lbs of torque than my 363 it needs less gear so I have to put my 4.10s in. The 363 didn`t like them but they will be great for the 408.

Last edited by 11secdart; 11/29/15 04:03 PM.
68 Dart 410 / 904
92 D150 original owner
21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4
23 Audi Q5
16 Honda HRV