Actually as far as I know personally, they used the stock 340 4 bbl. automatic cam in the Little Red Express Trucks.
The same cam profile that was used in all the 360 4 barrel engines.
lift: .430/.444
Duration: 268/276
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The 360 2 barrel engines used this profile in 1975 and up:
Lift: .410/.410
Duration: 252/252
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The above mentioned MoparWiki profile with .284 lift is wrong, they used the duration number of 284 for their 68 340 lift...wrong.
Here is the '68 340 4spd cam:
Lift: .444/.453
Duration: 276/284
You can see ^ this is where they got their .284 lift number and the 276 duration numbers in the MoparWiki article by using the duration numbers only, thinking the .284 was the lift....Wrong...
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