rocker choice

I am thinking of upgrading my rocker assembly . My cam is a circle track racing cam with 288 adv duration on both sides and 495 lift with 72 deg of overlap on 106 centerline . I will be running crane doubles and would like to know if a change to a longer rocker would be a good up grade ? Or a touch to much for the street. my valve guides have been cut for the double springs. my heads are nicely worked X heads ,M1 single plane,3 inch pipes and 391 gears on 26inch tires ...what do you think:coffee2: