DeadMan
Registered User
Been lurking around here for a while, thought it might be time to chime in.. I found the site below when I put together a 429 for my mud toy. Haven't checked to see if they produce it for the idi yet, but it may be the ticket to drop compression...
http://www.headgasket.com/gaskets.html
http://www.headgasket.com/gaskets.html