compression with 274cam

I've looked for the card and I'm not seeing it but it's just the comp cams extreme energy 284 with 507/510 lift. I did have comp promagnum rockers and remember the lift being very close to the advertise but if your running stock rockers then you should have some extra room. As for springs they were 99837. Around 125 seat and around 295-310 open. I'm sorry but I don't remember my installed height but I do remember that they were all over the place. I run higher spring pressure in my 340 but I spin that to 7000 and my 360 only saw 5900rpm. Some people like big cams and think 10 inches is more then enough. For me 11 inches is the lowest I'll go anymore and still drive it on the street.