Interesting. I decided to mod because I just hate plastic lines. I didn't like the way they ran under the intake. I'm thinking about doing a dual catch can setup that I can switch to high flow when I go FI without too much trouble. I'm using McNally Gen2 catch cans that I got when they were on sale for $70. With that sweet Roe SC, you didn't have room to tap the OEM casted ports like I did. If anyone wants to do this, there is plenty of material to tap threads there. I read about oil getting into the cans under extreme braking or acceleration and wanted something similar with options but I didn't want to make a plate to put the port in the middle of the valve cover. I'm thinking about connecting both ports with a tee and then a single line to the can. I tapped them for 8AN but the pic has 12AN fittings which I will change. Im trying to figure out what the other lines do on the driver's side cover that has no restrictor. One goes to the brake booster and maybe one down to the fuel vac system. I have an electric brake booster that Ill try out.