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

Looking to install a new camshaft in my 408. Trickflow heads cnc ported, molnar crank/rods/icon pistons 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.

Curious what everyone is running and which lobe seperation they find or found works best.

Thank you
What did it make for power? Carb? headers? fuel?