Slowpoke70
Mar 21st, 04, 3:21 AM
I have a spare 6.5PV for my 650 Vaccum Secondary 4160 holley. I'm assuming the 6.5 is what came in the carb stock?
i won't be able to tune my timing curve for a while but I need to fix my PV NOW, the car is running so rich that i can smell gas in the exhaust with my windows down. I really need to fix the rich condition. I'm assuming it's the PV because the carb backfired before we fired up the 350, and although the 305 ran somewhat rich, it wasn't this rich. i tried playing with the mixture screws, getting the highest vacuum reading while idling in Park (dont really know how to do it in gear), but I can still smell unburnt gas in the exhaust.
Also, on some morning, I can start the car up, wait a few seconds, put it in gear and drive to school, no problems. Other times, it'll hold idle in gear but will stumble/stall when accelerating (lightly or hard) from a dead stop. And sometimes, it won't idle in gear at all. This is always one the High Idle circuit, sometimes it'll run perfect, sometimes it wants to shut off, sometimes it won't hold idle in gear at all and shuts off on me.
I have no idea how old the carb is, or when it was last rebuilt, etc. Should I just go ahead and attempt my first carb rebuild while I'm at it. I would use one of those Holley rebuild kids, I think they're 20-30 bucks in Kragen.
Sorry for the long topic, but I have to get rid of these problems because I drive this car daily. I know timing should be tuned first, but I need a timing tape or balancer cover to do that (Read: No money for that).
i won't be able to tune my timing curve for a while but I need to fix my PV NOW, the car is running so rich that i can smell gas in the exhaust with my windows down. I really need to fix the rich condition. I'm assuming it's the PV because the carb backfired before we fired up the 350, and although the 305 ran somewhat rich, it wasn't this rich. i tried playing with the mixture screws, getting the highest vacuum reading while idling in Park (dont really know how to do it in gear), but I can still smell unburnt gas in the exhaust.
Also, on some morning, I can start the car up, wait a few seconds, put it in gear and drive to school, no problems. Other times, it'll hold idle in gear but will stumble/stall when accelerating (lightly or hard) from a dead stop. And sometimes, it won't idle in gear at all. This is always one the High Idle circuit, sometimes it'll run perfect, sometimes it wants to shut off, sometimes it won't hold idle in gear at all and shuts off on me.
I have no idea how old the carb is, or when it was last rebuilt, etc. Should I just go ahead and attempt my first carb rebuild while I'm at it. I would use one of those Holley rebuild kids, I think they're 20-30 bucks in Kragen.
Sorry for the long topic, but I have to get rid of these problems because I drive this car daily. I know timing should be tuned first, but I need a timing tape or balancer cover to do that (Read: No money for that).