Fixed pcv, good vacuum, car idles at 750rpm but sounds cammed

My pcv hose was kinking for god knows what reason, it was 3/8in 275psi braided pic hose, I have a catch can inline and needed better line. I replaced it with 3/8 315psi multi purpose hose. Brand new pcv grommet and valve, all works great. I start it up and when it got to normal idle I noticed it sounded super rumbley, constant 750rpm idle but it sound cammed. By letting it idle a few minutes it only stuttered a few times rpm might have fluctuated a little but it just sounded like how a drag car idles it's not always constant. It doesn't seem normal for this car though, stock internals, intake and exhaust done, some cooling mods, that's about it. My other f23 doesn't sound like this. I can get a video up, you will be able to hear it because of my muffler will rattle. I need to know if this is normal, not urgent I am going on vacation tonight. I am thinking if it is a problem it's fuel, vacuum, or valves. I just had my valves adjusted 2500mi ago.

Edit: it no longer stutters and pops, at one point it did it a lot until I put it in gear and I never heard it again. It still sounds rumbley at idle though. I don't think it's misfiring, I suspected it earlier but not anymore.

Check codes & idle intake vacuum pressure.

Checked the codes, all I have is the o2 sensor because my cat back trips out the sensor. I'm going to check compression and vacuum as soon as I can. I don't know where it would lose vacuum pressure unless my hose barbs leak on the catch can. It's a 3/8in hose from O'Reillys, barbs are 3/8, all my previous hose was 3/8, but this new hose felt pretty generous. I slipped it over the intake manifold nipple and it was tight, pcv valve was tight, but the hose barbs just brushed the sides, then I fastened it all with hose clamps. This hose isn't kicking and it's a lot more heavy duty, I would like to keep it.

Sometimes they have IACV & EGR problems. Right I'm checking for a bad coolent temp sensor because I have problems when sitting hot for ~10 minutes. IACV & EGR will both appear as low pressure (not enough vacuum) because they stick open.

[edit]I'll make a thread about mine later, when I fix it[/edit]