B/PS? Who in the world would want to run that?
Contact Mark Kent at GM about the cam specs. IHRA didn't have any for our car so we emailed him and he was kind enough to send us the OEM #s. I then sent those to Mike Baker and he approved the car for Pure Stock. Then gave those numbers to Bullet and they ground us a nice cam. With changing the cam and adding 1 & 7/8" headers we picked up more than 5 tenths.
Also, don't be afraid to put a converter and gear in it. We have a Yank SS4000 because I found one almost new for about half of what they cost. It's a great converter but it's a street converter. When I get ambitious I'm going to try to get it loosened up to 5000. We also put a 3.90 gear in the car because it was a DD at the time. They only go to a 4.10 on the gear for these cars and I wish I had that. We run a 28" tire. I believe with a 5000 TC and a 4.10 gear I could pick up even more. If I had an LT1 car (and I have had those) I wouldn't hesitate going with a 5000 converter and a 4.56 gear with a 28" tire.
Where are you located?
Scott