273 Formula S question

For the 90degree line to the Power Brake Booster, I've never seen one of those installed on any car originally. For 64-67 273's I've only seen the single vaccum port Nipple bolted into the intake, and a hose comes straight up/out to the booster. Maybe at one point someone had a problem with the hose kinking or my thought is when they added the check valve (Definitely not original equipment) they removed the original nipple for one with additional vacuum ports, that they added the 90 for some reason.

Cant take pictures of mine, which I keep as the original look, because I only have manual brakes.