tti's leak

and theyre annoying me.

setup is the fully coated and polished tti step headres for a body, bolted to indybrock heads with stage 8 locking header bolts.

both the collectors and head flanges are leaking. i purchased some copper gaskets from summit for replacement.

what install practices for the copper?
rtv?
torque spec?
tightening pattern?
other suggestions?

this is the third set in 2 years and 2000 miles. im starting to get annoyed.

michael