Thank you DennyW, glennsexton, and rspears! The 12-209-2 seems to fit the profile. Glenn, to answer your question and give you a bit of history, might be long, here's what we're up to. A 1972 Chevelle was the first car I ever owned and it was purchased in 1994. I drove the car up until about 1998 and parked it. It had a 68' 327 stock motor that was rebuilt after we acquired the car. I only ran up about 10,000 miles on the motor. Fast forward to 2015. In this year I bought a 72' Camaro fully outfitted for drag racing only, with no motor. My dad and I pulled the 327 from the Chevelle and I sold the Chevelle this past December. The 327 block is to serve as the 383 race only stroker motor with all new parts, of which close to half I have. All the old parts that came of the block were placed on my shelf in the shop. Last week, we bought a 355 block that was honed with new cam bearings. As a side project while we wait on 327 block to come back from machinest, we're tinkering with the new 355 block and having fun just putting it together while we wait on 327 block. Its all sentimental as the first engine block I ever owned is going into the first drag car I've ever had and the parts that came off that block are going into this hobby 355 engine. That being said, this cam only has about 10,000 miles on it. My dad is an ex drag racer, hotrodder, engine builder, etc. and has taught me a great deal about chevy engines. He's probably forgotten more about engines than the average person knows about them, as the saying goes. I've also been fortunate to meet club members on this forum and other knowledgeable folks over the past year like Richard (aka Tech) and a California Racer, Chuck Norton. These two individuals have really taught and coached me a great deal on concepts that I'm new to like degreeing a cam, P to V clearance, etc. These were things I never really gave much thought on until I met them. That's a lot of words but that's a little about me and thank you for the specs! Now we've gotten some data to compare to