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A few years ago I discovered that Carburetors are the most fun thing in the world. ...so a deep dive into the carburetor world started, here is the short version: I started reading all the carburetor books/forum posts/articles, getting all different tuning kits, installing Afr meters, being...

Tuning the carb and I have a bog off idle I cannot get rid off. (413/650 carb) Standing still making a quick blip to the throttle and the engine almost dies. With the afr meter im at 14 idle, cruise 13.6. From standing still I can move the throttle slowly just a bit and I reach 13.6. The...

Just wondering if I can get correct readings from my afr gauge when standing still revving the engine in the garage. (Moving the throttle to 3k rpm and holding it there.) I just want to be in the ball park before I go out driving. Idle is set at 14.3 then when pushing the throttle holding it...

Happy having my custom Carb finished I did some quick start test with the engine to set float levels etc and check for leaks. .....and my new quick fuel base just pours fuel from the secondary shaft, both sides. :( Can this be fixed with those shaft nylon bushings? Or should I get a brass...

Im a bit puzzled here about the next step to tune my carb to get richer at wot? Right now when going flat out I am around 13.8-14.2 in afr. Classic Holley 650 VS. 63 jet in the primary and 73 secondary. 7.5 power valve. (Idle in gear auto gives 16hg.) Timing (14 BTC) and floats adjusted. Cruise...

Put the motor (413) back into the car with everything new from the tank to the carb. Now when starting the car the fuel pressure gauge fluctuates between 12-13 psi. The pump is a Edelbrock 1723 (Rated at 6 psi.). The filter is a 30 micron Hyperfuel 80113 (Also works for EFI.). The gauge is a...