I put some Edelbrock Preformer Heads on my 68 5.0, now the AC lateral bracket sits 1 inch to high to bolt it back to the front cover. Anyone else have this issue and if so how did you correct it. Looking for some input before I modify this mount? I have found out there is a different AC base on the 70-72 Windsor engines. If anyone out there has a 70 -72 bracket that could get me the total height I sure would appreciate it!