I seem to be in the same situation. Both guides are metal. Tensioner is all the way in. I actually had to really force the passenger guide over just to get a bolt in the top. This is my 3rd 22re timing chain ive done. First couple were plastic for left guide. I might try the original guide to see if it is less tight.
Came across this info, towards bottom of page includes pic.
http://www.lcengineering.com/LCNewsletter/2011/September/september11.html