Try them and let us know
![](/ubbthreads/images/graemlins/thumbs.gif)
I did some air cleaner testing years ago when I lived in Hesperia, we dyno tested in Ontario 1 block north of the 60 Frwy, two stock 6 pak air cleaner elements stacked on top of each other with the lid on was worth 8 HP compare to one single element
![](/ubbthreads/images/graemlins/1343795-scratchchin.gif)
No air cleaner elements with the stock six pak air cleaner based left on the carbs was worth another 5 hp at 5500 RPM
![](/ubbthreads/images/graemlins/shruggy.gif)
Using the carb. spacer will increase the plenum volume, which should help make more HP and torque, maybe not a bunch, but some gain is better than none
![](/ubbthreads/images/graemlins/Twocents.gif)