4 Barrel
Looks like his cam is:
Lift: 441 / 441
Duration: 276 / 288
Lobe Centers: 114
________
Solid lifters, with adjustable rockers?
Or
Hydraulic lifters with stamped steel rockers with the mopar rocker shafts.
______
If you have mechanical adjustable valves, should have around .010 - .012ths valve lash, not .000
If it is hydraulic lifters and adjustable rockers then you need around 3/4 turn after zero lash, for the pre-load.