Offenhauser 1949-53 Flathead Ford Aluminum Timing Gear

All parts good, except the Isky adj lifters, the tool to adjust will not fit the lifter, I have used these tools before and the tool is correct, but the holes in the top of the lifters are too small to accept the tool. On a subsequent call, I was told by your flathead specialist that they were aware of this problem and was told I wouldhave to modify the tool. I am disappointed with this product. I have adjusted the valves on other flathead rebuilds with no problems, I feel like I should have been told before I ordered the Isky lifters that they were drilled incorrectly.