:
: I have built a 225 with ported head new guides
: stock size valves, .100 milled off, a 252
: Comp cam , .435 lift 110 lobe seperation, MP
: header 2.5 inch tailpipe, Offy intake 390
: holley and comp cams springs. I also have
: 3.50 gears auto trans stock converter.
:
: This is what i have done.
: Changed the vacume csecondaries spring to all
: posibilities. No big change.
:
: I installed a 50cc accelerator pump which made
: it worse so I figuer its rich in stead of
: lean. But it doesn't black smoke.
:
: I think it's my stock converter. It feels like
: it up against it off the line.
:
: What it does is boogs off the line to about
: 3000rpm in first gear I don't notice it in
: second or third.
:
: I run 17.46 with it booging like this If I
: could lose the boog I think I could get in
: the 16's.
:
: 1975 Dart Sport weighes 3150 with out me add
: 200 for me.
: thanks for any help

: What kind of manifold vacuum do you have at
: idle? What's the initial spark advance?
: What's the total spark advance? Describe the
: advance curve? Vacuum advance? Check the idle
: speed screw. At curb idle , do you have the
: transfer ports/slots exposed? You may have
: to pull the carb, turn it over and look up
: the bore to see what I'm talking about. If
: they are exposed, you're running on the main
: jets at idle. Not good. This also gives you
: an erroneous initial advance reading, if the
: vacuum advance works off ported vacuum.

:
: I have the intial advance at 10 degs. I have
: run it on up to 14 degs that does not effect
: the boog. I have a stock electronic ignition
: with vacume advance. I put some paint marks
: to check the dist advance. It seems to
: advance about 10 degs more just after I
: crack the throtle then 10 degs more a tad
: past that. For a total of 30 degs or 34 degs
: respectively. I havn't tryed checking the
: vacume it seems to pull the dist around good
: though. I don't know what your talking about
: on the carb. Could you clarify that a little
: more. I have a mild set up did it to avoid
: buying a converter,budget you know, but now
: I wish I would have just waited till I could
: aford it. Any help is greatly appreatiated.

: Sometimes, due to a radical cam, late cam
: timing, even excessively rich or lean fuel
: mixture you can end up with poor maifold
: vacuum. Sometimes, poor manifold vacuum is
: due to poor valve to seat seal, poor guide
: to stem seal, poor manifold to head seal,
: even weak valve springs. In any case, poor
: manifold vacuum will tend to slow the
: throttle response. How much manifold vacuum
: do you have, and at what RPM? If you don't
: have a vacuum guage, you should get one, and
: study the instructions. In the hands of an
: expert, you'd be amazed at what one can
: deduce about the condition of an engine.
: After adjusting the carb to the lowest
: smoothest, highest 'vacuumed' curb idle,
: remove the carb, and turn it upside down.
: With the throttle plates(s) closed as far as
: the curb idle screw will allow, the only
: holes visible in the throttle bore should be
: the ones for the idle mixture screws. The
: transfer ports are the ones that are exposed
: by opening the throttles from curb idle
: position. They are a transition enrichment
: between idle and full cruise. One of them is
: your tap for your vacuum advance. If you see
: the transfer ports, you have screwed in the
: idle speed screw too far. You are
: inadvertently using them as a crutch to
: solve some other problem, such as poor
: manifold vacuum, poor mixture, etc.
: Also, if the vacuum advance port is exposed and
: you failed to plug the vacuum advance hose
: when setting initial spark advance, you will
: get an inaccurate reading on your initial
: spark advance.

: Thanks for the responces I will try these
: things I think I understand what your
: talking about. I just have to decide where
: to get a converter probably Midwest.

: I have a 3000 stall Houges converter and low
: gearset 904 and 3.23's. I had a little bog
: but nothing big. I couldnt get rid of it. If
: I loaded it hard on the converter I could
: get it to take off good but it was SLOW to
: get from 2500 to 3200RPMS..right after that
: it would wack over to 5500 in no time. I
: advanced my cam 4 deg and I have lots of low
: end now but the car lost everything above
: 5000rpms.