I'm not using the trick flow heads, but on my Edelbrock vic MW port i used HS rockers. Great people to deal with as after talking to them i find out i could buy them in 2 different lengths. I believe i got the longer ones and geometry looked about perfect out of the box. They also told me they could drill the rockers for pushrod oiling at no extra expense. Just a heads up on a one in a million great company.