Need S/Plug Wrench For Aluminum Heads?

[77 350 Shorty Wide]

Hi guys, I'm installing a set of new aluminum heads on my 350. This is the first set of aluminums I've ever used. Here's a problem I have encountered. When I went to install the spark plugs my wrench won't fit between the heads and the plug. What are you all using.

Here is what I've got.
Brand New Patriot Style Heads: Brand new Hooker Super Comp 1 & 3/4 tuned headers, using Brand New Accel Header S/plugs.
The recessed area around the plugs is to tight to let my 5/8 swivel S/plug socket to seat over the hex of the plug .

Thanks in advance for any help and Gods Bless, Terry