Don't try to eyeball the angle of the carb flange. Put a carpenter's level on the manifold and shim the engine cradle until the bubble centers, then stand the level up at the back of the bellhousing and see how far off plumb the bubble is.
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!