From the perspective of someone who used to try to make those pieces of junk work without sucking the secondary metering needle into the engine and imbedding it in the top of a piston, RUN- - - -do not walk away from the Varajet carburetor. They were notorious for wrecking engines when that stainless steel needle came adrift!
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!