I think anyone considering the Harland Sharps for Victors should mock up some HS rockers on those heads first before dropping the $$$ on them. It wouldn't surprise me if their longer distance between the shaft c/l and roller tip c/l puts the sweep pattern too far towards the exhaust side of the valve tip.

HS rockers are also significantly heavier than most other brands from what I've seen weighing them, and a good chunk of that weight is hanging over the valve end of the rocker, too. IMO, they could use a serious re-design to streamline their Mopar rockers' bodies.

As always, just my ... Plenty of people on here absolutely love HS rockers and seem to get a case of heartburn when I express these particular opinions on their products.