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**WIDESIDE72** · 08-02-2013, 07:16 AM

I wouldnt run more than a flat top on the street with iron heads uess you want to spring for the extra octane and imo it wont get you much extra power in return.
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08-02-2013, 07:16 AM	#11
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,500	Re: After the math I wouldnt run more than a flat top on the street with iron heads uess you want to spring for the extra octane and imo it wont get you much extra power in return. Posted via Mobile Device