Posted by DAVID (IP: 205.198.28.155) on September 21, 2000 at 07:07:41:
In Reply to: What are they for??? posted by Mavman on September 21, 2000 at 01:37:08:
port plates are made to bolt on either on the intak or exhaust manifolds to raise the floor of the port. the exhaust plates are supposed to help the exhaust flow out musch better and increase your low end torque. they're around $75 .