Seriously....I need the real answer....

Over and over, I have received conflicting info on which lower pulley is safe for me...
Some say 4lb, others say 6....because the HD has a different pulley than the L on the SC....a 6lb for the L is the same as a 4 on the HD....

Don't know 'bout yall....but I think the extra 2psi would suck-bad if that is not right.....

For those that need a refresh.....

1997 F-150 4x4 3-door 4.6 Vortech SC turned
1997 F-150 4x4 3-door with a 2003 HD 5.4 SC Transplant in front of a WAAAAY expensive Art Carr 4R100. Cluster and computer are 03 Lightning. C&L uppers, Accufab single blade, Lightning MA, SCT2 Flash

So....whattadillio?