Nashville Early Bronco has been struggling with header leaks since he installed his new headers because the header bolts kept coming loose. It’s so important on these EFI units to have a proper seal at your header. Stage 8 locking header bolts are great! They are the best header bolts of 2020! They lock, so they won’t loosen over time. And they have the ability to get an Allen wrench on them instead of trying to get a socket on top of them.
Definitely check these out when you are buying a set of headers.