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Re: Help deciding between 750 mech and vac on my 454
Yeah, it's amazing how the "advice" for a street driven truck morphed into 6k @ 100% ve fire snorting monster.....
Never going to happen with a stock-headed, over-cammed engine.
For a street driven anything stick with a vacuum secondary carburetor and forget the "gimmicks" that do nothing but cost you power and driveability.
The "screw thing" is just ridiculous. It forces the secondaries open with-out the additional fuel needed to cover it...and if your vacuum signal is so low that you think you need a double pumper, you have other issues anyway.
Double pumpers are strickly racecar stuff, for engines that run at wide open throttle
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Quote:
Originally Posted by Longhorn Man
As for reading directions...
The directions are nothing but another man's opinion.
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Learn from the mistakes of others, you won't live long enough to make them all yourself...
Bad planning on your part does not necessarily constitute an instant emergency on my part....
The great thing about being a pessimist is that you are either pleasantly surprised or right. 
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