Gonna do the 520 conversion on my '60 F4i so I orderered the AFAM / D.I.D. ERV3 chainkit shown below from kneedraggers:
http://www.kneedraggers.com/details/...-AFAM-244.html

I went-1 / +2 so's my fat a$$ can get off the line a little better.

Also, since I'm stupid enough to try to do this myself, I also bought their chain tool:
http://www.kneedraggers.com/details/...--56-MP-3.html

 

Gearing is never a bad choice. But once you get it on there, just take it easy for a bit so you can get use to it.

 

gearing IMHO is the best single thing you can do, requires no engine tuning and response is soooo much better. but one thing that is a drawback is your gas miliage will be lower. but if your like me and cant complain about 12 fill up for prem. that lasts all week (unless i go for a canyon ride or something other than my daily commute to work or around town) than dont worry about. you made a great choice, o but if you wanted info on the brand, i cant help you there, but it is hard to build something as simple as a sprocket and have it be sh*ty

 

Good choice of sprockets and chain.

 

How are you liking this? Make a big difference? Pro's or cons?