That's where the swivel head gear wrenches are awesome. They fit into so many spots where you just can't get a ratchet. I did the majority of the header bolts with those. I will say, the top nut on the passenger side motor mount is really difficult to reinstall and tighten down after installing JBA's, not sure about other headers. You basically have to get a box wrench in there and tighten it as best you can because you can't reach it with anything else except a crow's foot.