Just read on Drag Race Central.com that Norwalk Raceway is going from IHRA to NHRA in 2007. They are also going to invest $4 million to improve the track facilities. Here's the links for both stories:
http://www.dragracecentral.com/DRCStory.asp?ID=122065#indextop
http://www.dragracecentral.com/DRCStory.asp?ID=122067#indextop
http://www.dragracecentral.com/DRCStory.asp?ID=122065#indextop
http://www.dragracecentral.com/DRCStory.asp?ID=122067#indextop