EQ Magnum head max lift?

I'm running a comp 268 xtreme energy solid cam in a 98 318 Magnum block with factory replacement heads, Hughes 1110 spring kit with retainers and 1.65 rocker arms for .539 lift (.551-0.012 for lash) and it's tight but I've been running it on the street for about a month now and no clearance issues.