Setting up a MSD with timing control with 35* of total retard & a locked out distributor. The box has a setting to lock the MSD at 15* of timing to “set” the distributor & ensure its degreed in right. I did that & that’s all great but I need somehow to advance the distributor another 33* so it has a range from 13*-48* that the MSD unit can retard the timing to. What’s a good method to get that 33* more timing dialed in?