I gained 24 cfm at .600” but it’s not a fair comparison as I had different seat angles with bigger port and I saw there is much room for improvement, thing is that I already had Indy top end on my mind and was not motivated to max out Edelbrocks. Also different carbs were used. Power wise I had a jump from 643hp using small port and 850 double pumper to 697hp with max wedge port and 1050 dominator so really you could feel it instantly.