Yep, I heat cycled, retorqued, pre-stretched, used ARP thread sealer per recommendations, set them to 65 lbs the first few tries per ARP recommendations which was clearly too low... Then I ran them at 85 and still had problems.
The pre-stretch, torque, heat cycle and teardown & retorque seems like too much effort. Seriously, that is alot of work for not much if any gain...
Ask yourself if the ARP's provide any better torque than the stockers...
Clean the threads in the block, buy a new set of stock bolts install once to 70 lb ft and fugettaboutem.
They stretch (read - "clamp") better than the ARP's (which IMO are too hard and don't stretch enough for our use), and hold the head on better for 99.9% of all the cars out there.
Just my opinion, but it's based on alot of experience changing head gaskets. After switching to stockers, I haven't had to change one gasket.