318 build #2 "cost minded" for the '74 Duster

Top of page 9, so I'll do a quick parts list so far.

*
'94 5.2 magnum engine
* 20-745-9 Comp Cam Roller
* Hughes Spring Kit with 1110 springs (springs/locks/retainers)
* Weiand Stealth Intake 8022
What is the difference in the 8007 and 8022 weiand intakes? Just wondering why the 8022 was your choice.