Spark plug wire routing for a 340 small block.

str12-340 said
Straight boots don't have to be a mess...

Nice example. The 'floating' wire seperators help too.
Factory examples shown here.
https://www.forabodiesonly.com/mopa...ing-looms-and-grommets.513182/post-1973831796
I don't see that square one very often.