I was born in Los Angeles, grew up in Glendale. Interesting you ask that question. SoCalif (& probably NorCal as well) were traditionally nitro. We all knew there were fast door cars & enjoyed watching them. We liked Super Stock, especially in the early 60's with the Hemis & Ford Thunderbolts, etc. But when a track wanted to put on a show, it was the nitro classes. Dragsters originally, then funny cars when they became popular. I really don't remember Pro Stock being that popular on a local level, altho the class was run at "big shows" sometimes. I do remember that when the first NHRA Pro Stock class was run at Pomona in 1970, it was well received by the fans. Bill Jenkins won and ran 9.99 in the final and that was wild! But I still think that nitro was king. It's interesting to me that Pro Stock & later Pro Mod really caught on in the South, & maybe the East as well, but not the West Coast. We did have A/Gas Supercharged & old timers remember Stone-Woods & Cook VS Big John Mazmanian. Popular because they were supercharged and could smoke the tires like the dragsters. Most of that class went on to F/C. I dunno, Pro Stock has evolved like all the other classes. You have to admire the speeds & ET's they are getting out of 500" motors, but.... the class long ago left it's roots. I like Pro Mod better because 1. They are fast 2. Noisy 3. A variety of engine combos. Just speaking for myself, I have always loved the faster classes. Modified Roadsters back in the Daze, dragsters, AA/FA, on & on. Same today. Nitro, T/AD & TA/FC, Pro Mod, Not so much Pro Stock. Anyhoo, that's the Official Cliff Explanation Of Why Pro Stock Ain't As Popular. heh