Twisted 6 (Larry) is the Inliners resident "Lump port expert" and moderator of this forum which is why I chose to use the Lump port mod to illustrate my point.
There are excellent cut-away pictures as well as discriptions of the "Bolt in" Lump Port modification on his "Twisted 6 Racing" website.
Here's a direct link to the article on his site:
http://www.t6racing.org/id2.html Lump Porting has been discussed at great length on this site so do a search and you'll find info on several different types of Lump porting.
Enjoyed this thread Automotivebreath, I first read about the "Grooved" head mod on the AutoRacing message board. I believe you had input in that thread also. Very interesting subject.
