I have mild build 318 on my Duster.
KB pistons for compression, about 9.4
lunati voodoo cam, 256/262, lift .454/.475
performer intake, 600 cfm vacuum secondary carb.
And headders and 2 1/2 dual exhaust.
904 trans and 2500 stall.
Basically now i have stock 318 heads, stock valve size.
Would...