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Quick question im wondering if this is the flapper vavle or if its something else. If i get on it and shift into gear 3-4 around 5-8k its like a 2 second delay, rpm drops and it doesnt seem to catch right away. is this the flapper valve. thanks
 

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Well it's in the RPM range of the flapper.
The flapper caused a dip in power between 5000 to 7000 rpm and caused a fueling glitch (hiccup) at around 6800 RPMs.
 

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A 2 second delay aint the flapper. Thats something else. Thats a long delay if you ask me. The hiccup from the flapper is exactly that a hiccup its only for a split second but its noticeable. If its a fueling issue check out your map if you have a pc. Try to locate at what rpm it happens and make a few small adjustments then try it again.
 
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