LA360 initial timing too high - are there different timing covers?

New gauge, but I'll try to verify it in something. Not that high, 1200' or so. I don't think the engine is worn all that much. I've had it running for a while over several driveway idles - round the block trips. There was no noticeable oil burn or blow-by. Keep in mind that the lifters have leaked some; so I would think the compression, after it had really ran for a while, would be 10-20ish psi higher. I'm really just thinking (hoping) that the cam installed wasn't a good fit. I'm going to pull the intake and measure directly on the lifters to see what they say. And/or see if there are markings on the cam.

In the mean-time. Anyone have any thoughts on a decent cam for: 360, 30 over, stockish heads (shaved a bit, but probably not enough to impact CR much - and I don't know the valve size - probably stock for 1978), 4bbl RPM intake w/600cfm eldy, schumacher headers into duals - 2.5"). 904 w/stock converter, The rear is still the /6 rear, but I was hoping to change that in the real-near future to something in the 3.55 range once I get the engine sorted. 15" 60 series tire/wheels. Manual brakes and aftermarket AC... Just a street engine, no real performance goals. But I want don't really want to change springs or rockers with this engine if I can avoid it. I was thinking the Comp High Energy 260H or 268H. But as I said before, cams are somewhat "magic" to me! So if those that know better could chime in, I would appreciate it.

My end goal is to get the car sorted with this engine, then go with an upgraded 360 at a later date (still a street engine tho).

Thanks again - I've learned a lot so far!