help , built 360 .40 over , eagle 4 " cast crank , scat H-beam rods , KB forged flat tops  12 to 1 ,  x-heads,  1.6  roller rockers with  comp extreme cam  230 -236   520  lift cam  , predator carb ,        have  2002  magnum r/t  heads i want to use , any help or comments welcome !    in a 79  power wagon  w/ dana 60 front &rear built  727  w/ 208 trans. case  4.10 gears       running 1/4 mile horse shoe mud races .   now beating 383 bow-ties  by 4 to 5 lengths   want to do more  ,  also  have to have  17 inches vac at  1000 rpms . also using rhodes v-max lifters , now at 17 & 1/2 inches .