Doug, does Fel Pro #1487 ring a bell. AFR recommends it for the big port heads on their site but no one will answer the phone (Saturday).
Heading up to Summit in Reno to pick them up in the morning unless I find out something different. Car has 8500 miles with NO issues till now. Snakes to the lake next weekend....gotta get on it.
Even if i find out something else I can take them back later.
