i have a chance to buy either trickflow or rhs

the specs for each

RHS Pro Action™ LS CNC-Ported 250cc Runner Cathedral Port Aluminum Head, 68cc CNC Chamber (26925 Dual Springs & Tool Steel Retainers)
Part Number: 54321-05TS


OR
Trick Flow® GenX™ 220 Cylinder Heads for GM LS1, Aluminum, Assembled, 64cc CNC Chamber, Chevy, LS1, Pair

any advice would greatly appreciated so i buy the best one

 

The problem with TFS or what my engine builder told me was that everything on a TFS head is specific to them. So if something happens and you need to buy parts then you have to buy everything from TFS. But other than that they flow great and make great power.