Deep Pulley Question for you '67 L78 Owners

[Chevelle SS 396 L78]

Thanks for the info so far guys! I've attached a pic of my '67 Chevelle L78 engine when practically new (you can tell the firewall is nice and fresh!). Note the alternator.....this appears to be a standard pulley arrangement. Either some L78's came out of the KC plant with non deep pulley alternators, or someone on the engine assembly line in Tonawanda screwed up!

I had problems with my power steering belt going off under hard acceleration [i.e. drag racing! :-)], and I've often wondered if the power steering pump also didn't have a deep pulley. This will always be a mystery to me. The crank pulley no doubt was the 3 groove deep pulley arrangement (the car had no smog & no A/C of course).

I thought I'd ask this question on this forum, since there were probably more L78 Camaros in '67 than Chevelles. Just looking for answers.

I am building an L78 engine to as close as my original engine's specs as I can get.

Thanks for the input,

John