Tf-tc 727 valve body modification

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bcuda1$3$

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Hello, 1974 727 transmission is shifting funny so I’m going back through my valve body and double checking things which has me wondering if any of you all have installed this shift improver kit. One thing in particular I am kind of concerned about is the hole it asked to be drilled in step 2. I’ve done it per instructions(I believe) but wondered if any of you guys know or recall this hole and does it look correct? Yes pictures one and two are the same hole. Any advice appreciated.

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I retract my previous comment. A 74 should have the spring and check ball. I was off a year or two! Sorry.
 
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I never used that kit but the trans go kits have u drill that hole on older valve bodies. I think 70 back. Can’t remember for sure. Post ur instructions and a few pics. What do u mean by shifting funny? Does it make u laugh? Kim
 
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