I addressed that in the article. The factory cam is just too small.
240/248/112 with an Ica of 48*(4* advanced already)
IIRC that cam is about 196*or 192,(I forget which), at .050
Performance starts around 220/224*@ .050, or around 60*ICA
Every 6 or 7 degrees is about a cam-size, so the 192 is about 4 sizes down, which is why, in the article, I use the 340 cam as an example, cuz it is on the upper limit for a 318 to still be able to make pressure with, but it takes a lot of Scr to get there.