Re: Mike's 53 Clipper

Posted by TxGoat On 2023/8/10 11:52:51

I think most old carbureted cars need to run just slightly richer than ideal on cruise and idle, and a little richer than that at or near wide open throttle.

If the car is jetted too lean, it will be "cold natured" and performance will be off a little. Detonation may be an issue with higher compression engines. Lean running can be hard on valves.

In most localities, frequent changes in weather and variations in fuel characteristics demand that carburetors be just slightly rich.