318 cam

The melling "stock 360-2bbl replacement" is the SPD 25 not SPD 22. I've used a couple of them. Bought my last one a year ago on eBay, someone was sleeping as I got it for a fantastic deal.
Identical to a COMP 252 except the lift in the melling is 0.015" less... 0.015" isn't enough to worry about.
In my first one I used many years ago I also used a magnum head conversion which gave me 1.6 rockers which made that 0.410 with regular LA rocker gear into 0 437". That 318 was in an 83, 3/4 ton D250. That cam, a set of eq heads and a performer intake and carb, really woke that 318 up ALOT. And even then that melling cam was 1/3 the cost of the comp with the 0.015 more lift. As I remember it was $80-some, this was back around 2008. The comp then was $250. I believe these prices were cam and lifters but I have slept since then.
The most recent spd25 I got off of eBay a year or so ago (cam only) was $60-some. I got the lifters that are going to be used with that cam from one of Rhinodart's swap meets, a set of NOS DC (yeah, before it was called MP)
Going into a 318 that's in my b body fury this coming winter, along with the '302 heads I have in the shelf.