Catch can noob question

Sway

From the front pcv, but I also have an m370 so they’re t’d into a single line. Got it installed today! It looks nice! I’ll post a pic tomorrow... seb from specialty Z said my cars pulling a little timing possibly from blow by lowering my octane... I put on the catch can and used an air compressor to blow out the lines to make sure there wasn’t any oil built up in there. But I didn’t take off the upper mani and clean it... how long do you think I need to run before I can tell if it’s not pulling timing or anything? I feel like I need to take it apart and do some cleaning first.

__________________