I keep that Fram PH8A around just to do mock ups. I wouldn’t run it on my car for nothing! LOL. I learned about the less angled adapter from reading a thread on here by @65barracudaLA when he went thru all this when he put a V8 back in his car. When I did my mock up, I tried both adapters with both with a long and short filter. I found that with the later, less angled adapter, that both filters would hit the frame rail. I was able to turn the late adapter to where a shorter PH43 sized filter would miss the frame rail enough to barely get a piece of paper between. To me, that was a no go since I wasn’t running solid mounts and like the big filters. When I got the adapter that I used in place to where I wanted it, and it provided the best clearance, I marked the adapter and the block with a Sharpie and installed it permanently with sealer and a copper washer under the head of the big bolt after I pulled it back out and had it back on the stand.
