I'm sure it could, but it would take a lot of work while maintaining the base storyline.
It is meant to be an action adventure type of campaign. As written, characters are introduced marching through the jungle when a firefight breaks out. Then each destination the party goes to is because a mission needs to be accomplished. Now there is some mystery between the lines of what is going on, but its pretty clear who the bad guys are and what their motives are in the beginning.
I would feel you are doing the campaign a disservice by running it under traditional rules. Don't worry, even with pulp rules, the campaign can still instill fear into your investigators even with their pulp benefits.
But yah, there is a lot of weird science. Psionics is optional.
Any reason why you want to go traditional CoC?
A trio of interesting books (One in two volumes.) from the early 20th C.
1. The Nile in 1904 by William Willcocks (Illustrated html version is 6.5mb)
This is a comprehensive survey of the hydrology of the Nile river system, lots of maps and tables.
2a. Thames Valley Villages, Volume 1 (of 2) by Charles G. Harper (1910) (Illustrated html version is 4.5mb)
2b. Thames Valley Villages, Volume 2 (of 2) by Charles G. Harper (1910) (Illustrated html version is 3.9mb)
Tourist type information on the region covered. Illustrations could be re-purposed by Keepers.
3. My Chinese Marriage by Mae M. Franking and Katherine Anne Porter (1922)
An account of an interracial marriage. Note to readers, 'Gay' in this book means something completely different to what it does now. Other usual (For this era) warnings apply for material like this.