Bogging issue in low rpms?

[ma67cpe]

I have a 67 mustang with a slightly modded 302. The motor has an autolite 4100 carb with a crower 15202 cam, edelebrock performer intake and its bored 40 over. I was having a problem with vacuum so (baron) moved my vacuum from the carb to a port on the intake. Now Im getting advance but when I put it "in time" it boggs in low nd runs great in high. If I advance the timing it runs great in low and pops,backfires exc in high. I havent tried retarding the timing to much cause I was afraid that the lows would get worse. any body have any ideas or free time this weekend? thanks in advance. Here are pictures of my plugs.

[80coupe]

if its the vacuum line from the dizzy its advancing backwards i bet.

[ma67cpe]

if its the vacuum line from the dizzy its advancing backwards i bet.

How would that happen? how can i check it?

[80coupe]

you just cant hook it up to any vacuum has to be from the metering block off the carb i only know this cause iv done it and that's what i was told! does it crank slow after getting hot? those vacuum line pull all the time witch makes it advance all the time. the one off the carb only works when it needs to.

[ma67cpe]

you just cant hook it up to any vacuum has to be from the metering block off the carb i only know this cause iv done it and that's what i was told! does it crank slow after getting hot? those vacuum line pull all the time witch makes it advance all the time. the one off the carb only works when it needs to.

Well Im not getting near enough vacuum from the carb so how can I increase vacuum? When i had it hooked up to the carb I would pull the vaccum line to put it in time and idle nor anything would change. Now that it is plugged into the intake it changes, idles up and down.

[80coupe]

have you tired cleaning it could have trash metering block? sound like the have a vacuum leak some where?

[ma67cpe]

have you tired cleaning it could have trash metering block? sound like the have a vacuum leak some where?

Its an autolite carb so it doesn't have a metering block. I did take the carb apart and soak all the internals overnight and then put it back together. I have sprayed carb cleaner all over the intake and carb bases to see if I could find a leak and the idle never changes?

[psdtech]

hook the line to ported vacumme and bump the base timing up. what do you have your base timing and total timing at?

[ma67cpe]

hook the line to ported vacumme and bump the base timing up. what do you have your base timing and total timing at?

on the timing Im not 100% sure what it is at. My balancer has lines but no markings. I have the mark on it when I used that balancer on my stock 289 where that motor ran great (except for being old an wore out.

[psdtech]

clean the balancer off and mark it or if you have a vacumme gauge adjust the timing till you reach the highest reading. that should put you close

[ma67cpe]

clean the balancer off and mark it or if you have a vacumme gauge adjust the timing till you reach the highest reading. that should put you close

I do not have a vacuum gauge. Let me go see if oriellys has one. Do i still hook it to the manifold port or go back the the carb port?

[psdtech]

the dis needs to go to the carb (the port a little higher than the rest) take your readings from the manifold. when checking just leave the vacuum line off. make sure all vacuume ports are hooked up or pluged when taking readings ( besides the dis)

[ma67cpe]

I went and bought a vacuum gauge and this is what I have now? I have the dizzy pegged against the tstat housing during this

[ma67cpe]

this vid is straight out of the manifold. Carb port is plugged and advance is open

[ma67cpe]

I re hooked the advance to the carb and it was very very sluggish in low rpms. If I leave it hooked to the manifold it runs the same through all rpms but still doesnt seem right and when i give it gas smoke shoots out the back for a second?