We’re 1500 ft above sea level. When the motor was dynoe’d it had 108% volumetric efficiency. That was in 1998. It had the dominator on it then. It came apart in 2013 for new roller lifters and valve springs. I put the TM7 and 1000 carb on it. Kim. I will note that with the dual tunnel ram and 2 660 holley’s it ran 10.teens