lean air fuel mixture

[Anonymous]

how lean can you run a 250?

 

[mugsy]

.....until the einge either glows red, melts or breaks !!!





Mugsy

 

[wsa111]

the first sign is surging at cruising speeds or a bog or lag on light acceration. this a trial & error method. the best way is get an air fuel reading on a dyno facility. hope this helps since you did not say what carburetor you are running. holley & edelbrock made an air fuel setup to plumb into your exhaust to get a air fuel ratio reading. later william :idea: