Is there some reason you're choosing to use an offshore copy of a Ford V8 carburetor on a Chevy six engine? There's no telling if the calibration is even in the right ballpark for the size of the engine- - - -probably not. It looks like you're deliberately stacking the deck against yourself.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!