82streetracer

iTrader: (1)

I dont have a pressure guage on my reg so I am going setting pressure by the float bowl, does fuel pressure change the final A/F ration. just wondering because I will be rejetting my carb soon.

diabolical1

iTrader: (3)

well ... based on my VERY, VERY, VERY limited understanding, i would tend to think your A/F ratio would be more sensitive to volume issues as opposed to pressure issues. but i ... THINK ... if the pressure is too high, then it will affect the A/F ratio in a carbureted engine. does that make sense????

mperformance

it does 82streetracer. What it does it regulates the rate at which the bowls get filled so at the end it does affect the a/f mixture ever so slightly. I've notice slight changes with the fuel pressure..but not that great, usually I notice in top end power...someothers can tell you better that is due to the uncovering of the air holes in the emulsion tubes in relation to the fuel level.

I don't know what you mean to set the fuel press by the float bowl like you mentioned. If it's by slowly adjusting a bit at a time and testing the car and making sure it doesn't flood then yeap that is the way I set mine too. The gauge is not that good of a monitor anyhow I use mine as a base reading so as to know I'm not pumping like 7 psi or so...but once on the low end forget it my autometer gauge (mechanical BTW) just doesn't cut it...

Sterling

mperformance

I'm learning LOL!