Has anyone used these and if so how did they work

I had a set just like that on my 86. Set the snubber gap about 1/4-1/2 inch from the body/frame. Worked good for me.
Mitch
 
That's kind of a hard one. I believe they were in the 1.8-2.0 range. Car was not very fast then.
Mitch
 
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