'84 Monte Carlo SS modified 305 H.O. ...
I feel like my fuel/air ratio is incorrect...
I have been adjusting the carb (1405 Edelbrock 600 cfm) meaning the choke (electric), the high speed idle screw, the idle screw, and the air ratio screws...
I feel everything is adjusted correctly except the fuel/air ratio screws, or it may be something else...
Today, I had it idling at 1200 RPM and 850-900 in gear (anything below that runs rough, and stalls more frequently). I played with it in idle and in gear while watching my vacuum gauge. Vacuum at idle is 20-21hg and 18hg in gear (not sure when accelerated or cruising).
After playing with it after some time and seeing it wasn't stalling, I took it for an 8-10 mile test drive and right at the end, it started stalling on me while I was accelerating and I tried keep it from stalling by pumping the gas pedal. It stumbled a few times before it finally stalled.
Funny thing is it starts right back up with no problem and will drive fine again, but when it stalls like that I just take it back home, and I assume it will eventually stall again if I take it any further...
I thought the fuel was restricted somewhere but fuel pressure reads 9psi...
I live in Oklahoma and right now the air is hot and humid, so I adjusted the fuel/ratio screws more richer than lean...if that makes sense...
What do you guys think is causing the stalling ? Fuel/Air ratio or fuel restriction ?
Or something else ?
I feel like my fuel/air ratio is incorrect...
I have been adjusting the carb (1405 Edelbrock 600 cfm) meaning the choke (electric), the high speed idle screw, the idle screw, and the air ratio screws...
I feel everything is adjusted correctly except the fuel/air ratio screws, or it may be something else...
Today, I had it idling at 1200 RPM and 850-900 in gear (anything below that runs rough, and stalls more frequently). I played with it in idle and in gear while watching my vacuum gauge. Vacuum at idle is 20-21hg and 18hg in gear (not sure when accelerated or cruising).
After playing with it after some time and seeing it wasn't stalling, I took it for an 8-10 mile test drive and right at the end, it started stalling on me while I was accelerating and I tried keep it from stalling by pumping the gas pedal. It stumbled a few times before it finally stalled.
Funny thing is it starts right back up with no problem and will drive fine again, but when it stalls like that I just take it back home, and I assume it will eventually stall again if I take it any further...
I thought the fuel was restricted somewhere but fuel pressure reads 9psi...
I live in Oklahoma and right now the air is hot and humid, so I adjusted the fuel/ratio screws more richer than lean...if that makes sense...
What do you guys think is causing the stalling ? Fuel/Air ratio or fuel restriction ?
Or something else ?