My engine builder just finished our short block, but there is one problem. There are no provisions on the stock main bolts for the windage tray. He had a part number for some ARP studs he thought would work but he wasn't sure because of the large stroke crank. I am running a dart block and the motor is a 540. What studs do you guys run? I could pick up the block and install new main studs myself but I would rather have him do it in case their is a problem.