If the wallet can swing it, I'd go with ARP STUDS. The next time my ARP bolts come out, they will be replaced with studs. You get a much more accurate and even 'clamp' with studs since the resistance of the threads in the block is taken out of the equation. I feel that of all the fasteners on the engine, these may be the most critical, plus given the amount of work to replace head gaskets, it's worth it for a bit extra insurance. Forced induction will definately push this importance up.
That said, with a NA application and properly prepared block threads, the ARP bolts are adequate to good. But, studs are great to excellent.
I used ARP bolts. Probalbly would have been a better idea to go with studs but oh well... Dont forget to use sealant on the bottom bolts and moly on the top bolts!
P.S. good choice going with Trick Flow!