Join Date: Dec 2000
Location: Willow Park, Texas
As jody said use the ARP thread sealer on the head bolts and on the intake bolts (to prevent oil from climbing the threads).
But first you should chase all bolt hole with a bottoming tap and then just prior to installation I spray all of the threads out with Berrymans B-12 carb cleaner to ensure that they are clean and dry.
Never had any leaks using this method.
67 CAMARO R/S CLONE, 355/turbo 350, 200hp NOS,12 bolt,etc...