Any updates on this? I am working on my little max effort iron head 340. I will be using a Holley Pro Dominator with dual 1150's on e85. Problem I have is that the odd port design of the intake in the plenum/runner area lead to some holes when I did the porting. Looking to fix with epoxy but not sure what or if it will work. Trying to avoid the expense of welding but may be necessary if I can't find a compatible epoxy.