[ponyakr]

"...It would be interesting to k ow why the switch."

One reason many are switching to the quicker, faster Factory Stock cars is so that many of their opponents will leave 1st, having the 1st chance to red light. They'll win lots of rounds because of that.

Another reason is because they'll be coming from behind, therefore will know exactly where their opponent is, as they near the finish line.

Another reason is because they'll be going much faster than their opponent at the finish line, which will make it much harder for their opponent to tell exactly where the faster car is & how fast it is approaching.

Then I suppose there are just lots of guys who like to go quicker & faster, but wanna stay in Stock or Super Stock.

Low 9's is about the quickest most of the alum head 428 SS cars will run, on a regular basis. But there are a lot of mid to low 8 sec FS cars, as well as some 7 sec cars.