I did a search and most of what I’ve found is in the parts for sale section. There was one topic on the I/C’s and from what I read people are impressed with them. So with a 20 year old i/c do I modify? The whole process would probably be in the $125 range which is way less the $800 stock location one I would really like. I don’t ever see myself running in the 10’s so maybe duttweiler is the way to go?