Posted by TRAVIS in the 3L forum under the sticky piston durability.

"Home ported heads never flow anywhere close from port to port and often the combination of gasses have MANY rich/lean pockets then when left in stock port."

Don�t know if this helps at, just remembered reading it and thought it might

98.5 Black SVT with 34k miles Build #5683 Born on 4\15\1998 WR Headers GMK CAI Blaupunkt system fiberglass tweeter pods L.E.D. tail lights in the works