Well...i think i found another thing its not. took out the main jets....the 4 of them and they were clear. took out all of the other jets and passages that screw down through the top of the carb...nothing blocked. However...i seem to be having the same issue still and cannot figure out what the hell it is. it makes sense that it would be the jets...fuel pump flows perfect

I wish i knew what the hell was going on....i dont want to give up on this car, but this is mighty discouraging

 

Have you checked the distributor, and your mixture screws?

 

Timing is perfect...and as said earlier both igniters have been tested via the factory manual. I am definitely not pulling the distributor as of now....unless my ignition system was shot or i had a new dizzy to put in

 

mixture and idle screws have been set, reset, reset, reset, and set again. they are definitely not the problem.

 

I wish that they were the problem

 

maybe I will take the carb back off again and soak the thing (minus gaskets) in some seafoam. the first time I did it....two weeks ago...I used marine clean which works great.

when I removed the secondary jets they looked good. however, it was much harder to remove the secondary needle/jets (not sure of exact name) located next to where the fuel is fed from. in other words, the 2 big screws, 1 for each secondary opening. anyway, maybe its because the secondaries are not always in use, or it could be that they are not clean enough

maybe I should still try to take it off and clean it up again? the jets were clear...and most of the damn thing looks rather new (clean)

 

Just to make sure that you pulled the correct jets, can you describe where they were located?

 

Sure. Took out the jets (4 total) located in the 2 float bowls. Then...finding that they were not plugged...took out all of the needle/jets on top of the float bowl assembly (not sure their exact name).

everything was pretty clean...but maybe a passage way could be gummed up....I dont know

 

You didn't happen to confirm that they are in the correct positions did you? Although, if you didn't remove them the first time, then that shouldn't be an issue.

Any chance you have the carb gasket upside down?

 

They should be correctly seated/in the correct position. Tightened them no more than before, and yes, only took them out this try and the problem is exactly the same. Also, carb gasket was checked and orientated correctly.

This problem has existed for a year now, and well before my stupid rebuild. Replaced the fuel filter originally and after the problem. No help. I dont know what else to do other than see if I missed some crap in the carb somehow

 

Thanks for all your help kentetsu...im going to look at it again today if i have daylight when i get home. Gonna take off the carb and check all passages

 

Its possible that progress has been made. Very little if any stumbling, but cannot seem to get quite to 6k or above even in neutral sitting in the parking lot. Not that i need to....but i would like to know nothing unecesswry is holding me back. Either way i gained about 1000rpms and im not stunbling or bogging down

 

How sure are you that your timing is correct? Weird that you can't even rev it very high in the driveway...

 

100%. Timing gun was dead on the notches

 

Do you have any way of concluding that it's rich or lean when you get in the higher RPM's and it's starts to run crappy? Are the fuel bowls venting correctly? How's the float level? Have you glued any passageways shut when you were stripping the carb and glue a whole shut you shouldn't have? How are the small filters in your fuel inlet spider? How are your needle and seats? Were the needle and seats installed properly? Do they hang up? And how long had the carb kit been sitting around before you rebuilt the carb?

 

So what was t he "progress" that got you further along? Might give us an idea of
more things to look at.

 

I'm surprised no one mentioned this... what shape is your exhaust in? Do you still have the cat? If it's clogged, that'll definitely have the effect you're describing. Easy/loud way to test that is to pull it off and see if the engine revs free.

 

I'm thinking timing for sure. Especially if you've been replacing parts. I've had this happen before. Are you running direct fire? I would at least play with the timing a bit, you can always set it back...

 

Well...exhaust is a very good point as it is definitely something i need. Even mazdatrix said i should replace it because the cat(s) will become clogged and cause this issue...along with my backfiring. Maybe i will wait until i can replace the exhaust before i try to fix this mess haha.

 

Yeah, if your exhaust isn't flowing freely then it's going to run like **** no matter what you do to the timing and fuel system. I had a similar situation a couple years ago. At first, the car would just not pull up top. Then it progressed to the point where it wouldn't free-rev in neutral. Eventually all that backpressure caused the front gasket on the converter to blow out.

 

To answer everyone....including crispin who i accidentally ignored:

I disconnected the vacuum from the secondaries, but left them alone mechanically as well. The arms are not tied together, thus i only operate on my primaries. Good news is that there is absolutely no stumbling of any kind, but i can only rev to about 5500 or so. The secondaries must be slightly plugged somehow...one of the passageways maybe. Anywho...i would imagine that i would need well working secondaries to make it past the 5500 or so on the tach. Hopefully i can figure out where the impedance is

 

How did you disconnect the vacuum from the secondaries?

 

Don't be too sure it won't rev on just the primaries. Mine would hit the limiter before I realized my secondaries weren't hooked up at all. It was just really sluggish after 4.5K on the tach with an engine load.

 

I left the primary box hooked up, but didnt plug the vacuum inside. It has to be a combo of some kind of gummed up passageway for the secondaries, along with my exhaust. Im running just on primaries right now, and it runs much better but cannot get over 5500 in neutral

 

You should not have any problem hitting the redline in nuetral, even on primaries alone.

I think you either have a fuel delivery issue, or a timing issue.

I would go over the ignition and verify everything. Also, disconnect the leading coil and then verify that you have no spark on leading and do have it on trailing (to make sure that they are not reversed).