I just put my headers on a few weeks ago and started tuning a few days ago. I have all of my FT's at or really close to zero from there previous 2,3 and 4's. Added a few deg of timing up top checked and rechecked what I have adjusted multiple times with good results. So I decided to do a 30 to 100+ mph WOT pull, FS that thing pulls like an animal. The tune is only about 60% done and I am very impressed how well these cars run with simple bolton's
Now I know why you guys like the LS1
After all of this excitement seeing how well the car has responded I decided to make sure all the bolts were still tight, etc. All was good until I got to the header collectors and felt the puffs of exhaust blowing past the band clamps. MF

I bet after I get that resolved my tune will be off
I might get lucky
LS1 =