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Old 06-23-2009, 12:48 PM   #1
ZombieWeinerDog
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Join Date: Oct 2008
Location: Sparta, MI
Posts: 446
Octane Boosters?

i usually use regular pump gas. when i do get midgrade or premium, i see an increase in preformance. there is also a very small engine knock when using regular. will octane booster help me? i dont have the cash to spend buying midgrade and premium every fill up. anyone have any experience?
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1972 longbed- 454
1967 shortbed- 355
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