Solid Roller camshaft selection those of you running a 408 race application - lobe seperation

12.25 to 1. Current cam 287/301 660/660 lift with a 108 lobe seperation at .050 254/268 and .440/.440
3350lbs Duster with 430gear and 29” tall tire.
That should put you very close to your goals in a healthy engine installed on a 106 to 108 (maybe even a 110) with your present combination and converter.