holley 670 street avenger help

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Joined
Mar 10, 2011
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Location
nova scotia
anyway,i bought this street avenger thinking it was gonna really turn on but the 650 double pumper i had on it,had more pull to it.what can i do to make my street avenger pull like theres no tomorrow.:finga:
 
Sell it and get a double pumper back on there.

Install the lightest secondary spring the engine can handle.
 
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