71 c-10 350 issues

I have just purchased my long time want for a 1971 Chevy fleetside. I was doing some maintenance and changing the plugs but how the heck are you supposed to get to the last 2 plugs on the passangers side.. they are behind the header pipes. I have had several chevys before 77 z28 71 impala 85 monte but all were easily changed. Any help would be great. or i guess i just unbolt the header.



Ok well I just went ahead and dropped the header on the left side. thought someone would know a trick that was just eluding my thought process.

Boxed end wrench used to work for me.