does anyone have experience with putting a 218/224 on a 112 base circle through smog? it is a comp cams grind if that means anything for overlap.

 

It will pass with everything else working properly. The hotcam passes, and
I have even heard of the GM 846 and CC 503 passing smog. I have no direct
experience, this is just what I have read from the board. Check out this
link on the Impala SS board:

http://impalassforum.com/noncgi/ulti...c;f=1;t=000062