OK problem solved. Here is what I found after searching the internet and all your help here.
The early timing chain cover IS thicker than the late model one. The early cover measures: 2.5" front to back and the late model one is 2.25" front to back. So what I found is that there are 2 different types of late model covers. One of them has the boss for a fuel pump and the dipstick but they were never drilled and or cut out. That is the one I had. So solution was to drill out the boss for the dip stick and tap in the stick from the early model cover. Viola problem solved and I can use the stock reverse rotation water pump.
I will take some pics when I blow everything apart and get it all ready to go back together so you can see the comparison. Needless to say I was very happy when I got home and found I had the cover I needed. I actually found the write up on this from a guys post on a 5.0 into a 65 mustang. Gotta love the internet!!
Thanks for all your help and input I am sure there are more people than me running into this issue.
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