GTX JOHN said that his 318 has a compression ratio of 8.5:1. I used the Wallace Dynamic Compression Ratio Calculator, I put in all of the required information, I used a 72* ivc because he said that his cam has lots of duration so I checked out cams and the one's that had 300 plus degrees of duration had at least 72* ivc. After I entered all of the information the Calculator shows a Dynamic compression ratio of 6.37:1 which equals a cranking pressure of 108.24 psi. I'm not saying that his car doesn't run 10's. I'm asking how can a engine make the power it needs to move a 3400 pound car into the 10 second zone with a low dcr? Again, this is only a question, I'm not saying that he didn't run those times