318 timing chain.....and why the engine should come out.

glhx said
I wonder about the @50 number

I’ve seen cams with a smaller @50 and a larger advertised duration and it makes no sense

I was taught that the @50 was to accurately compare cams from many companies.

But then I see a lot of mixed up stuff.
A 262 with 218/224

Then see the he268 with 218/218

And I think the k6900
With like an advertised 285
But he @50 is much lower than even the 262.

Which cam is bigger?

It depends on how the cam is ground. How "fast" the ramp is. I like slower, old school ramps on a street car because you'r not beating the valve open and slamming it shut. Much easier on the valve train, also much quieter. I've seen time and again people recommend a fast, slick camshaft and someone buy it only to complain about how loud the valve train is.