cutting fuel to a carb(s) may change bowl level. It may not throttle right away back into power...
just a thought.
I run carb too. if to add air bypass for a carbed system, engaging when throttle is off, that works good. I have yet to get a way for it to work on the carb system,
An idea is an egr not used that is a valved source into intake. maybe convert it to electric like fuel injected, and be it from a filtered line using the air intake filtered. Long engine braking on a carbed engine and no air bypass, can pump vapors into intake from the base (hence carbed engines stay clean for 50 years versus an air bypassed one that pigs itself all the time).
so there is drawbacks in any direction.A truck's jake needs no vacuum, they smack the valves around..so there goes ideas of "vtec" as a jake..vtec sucks at anything really, but that is not the subject here.
one could add a bigger vacuum canister, but on little engines, it will be a rough idle until satisfied.
manual brakes and manual sterring retirning to the primitives of man and machine would save the world. But we cannot have that either can we?
