i tried searching the forum and only found one. he had it done by a pro and had no pics.

 

Aaron cake has a nice writeup. Look in the 2nd gen archive.

 

searched again, no luck

 

I'm looking too actually so I'm subscribing to this thread

 

https://www.rx7club.com/2nd-gen-archive-72/serious-s4-wastegate-porting%85-352816/

ITs in the archive on the second page.

Spend some time learning the website and how you use the search. IF you go to Advanced search you can type in what words you want then select which section IE 2nd gen you want to search.

 

Seems like the pictures aren't there in the archive thread, but they are on his website. Check http://www.aaroncake.net/RX-7/s4wastegate.htm