What size bolts are these?

[hatzie]

x2 on what hatzie said. right now you need to get the right intake then if parts are just thrown together like that (probably from the local parts store) they probably just grabbed a bigger carb and went with it thinking it will be more power. i would go with a quad also and get the timing set then hook the timing advance to manifold vacuum not ported like you have now.

for the time being i would try and get that bolt out put it all back together without any vacuum leaks in the base gasket like you probably have now. and set base timing around 16° then hook the vacuum advance to manifold vacuum that way its always there after it starts up.

http://forum.73-87chevytrucks.com/smforum/index.php?topic=32085.0

http://forum.73-87chevytrucks.com/smforum/index.php?topic=31377.0

Hey i remember that famous rich weyand thread. I went through all that back when i was a rookie. Wait, i still am. Good teaching there.

A full rebuild on that qjet or get one here. I paid $195, great service, when i got mine it looked brand new. No problems since.

http://www.nationalcarburetors.com/

I haven't bought a reman carb for about 10 years so I didn't have a recent enough recommendation to give me warm fuzzies.  I've had trusted suppliers fall off a cliff quality wise.

National was the outfit that provided carbs to NAPA when I bought my last unit that worked perfectly when I bolted it on and is still working fine. 

Another option is to ask the local hot rod guys.  They'll know if there's a local trusted carb guru.

[m3talc0re]

Well, I'm not having good luck today. First, the bolt is still in there. I bought a craftsman extractor set and the dang extractor broke off into the hole I drilled. I'll have to take it to a machine shop I guess.

So i put sealant shoot on there and going to run it as is for now. Didn't rebuild the carb, just replaced that top gasket that was broken. Still leaking gas out. I don't know WTH the deal is..

[Irish_Alley]

if that carb is a 1406 its a 600cfm. its not too bad but i think any "performance" from that carb will be taken away from that adapter and intake.

[m3talc0re]

Maybe. It doesn't seem to be loose enough to let air through. At least until I can get it properly fixed. The adapter was on upside down before I think. It lines up with the carb and intake manifold now and isn't blocking things off.

And so far, knock on wood, there's no more gas leaking out. The float was way off. I didn't even think to check it before I put it back together...

[philo_beddoe]

Well dont fret over it, (i know, look whos talking). If the motor is in good shape and you dont want to spend a ton, you can always find a nice simple stock manifold and get a decent rebuilt qjet. All for no more than $300. I have done it.

[Irish_Alley]

where was gas leaking out of? was the gasket wet?

[hatzie]

I wouldn't pay more than $10 to get that stud removed because a replacement is cheap.  A used Quadrajet manifold should run you $25 - $30. That's about what they are running on Car-Part.com   
FelPro 1204 permatorque intake gaskets are $15-$20
A new 185°F thermostat and water neck gasket shouldn't be more than $15
If you don't have to worry about emissions checking the carburetor # just get the National Carburetor ND4650 that's listed for the 80's HD emissions 3/4 & 1 ton chassis.  It's on Sale right now... $269 including shipping.  You'll get $60 back when they get your core.  Don't ship the core back before you give the new one a good test run.

[m3talc0re]

I'd like to get a new intake manifold, but other things are ahead of it on my list XD

New tires, gotta fix or replace the speedometer, different steering wheel (hate the stock one, it's too thin), gotta figure out what's going on with the gauges and their lights, new sensor in the thermostat for the choke and probably a new thermostat housing. Etc..

[m3talc0re]

where was gas leaking out of? was the gasket wet?

It was soaked and dripping from the side the fuel goes in like crazy. I took the top off the carb again and looked at the floats and the passenger side was bent down way too far.

[philo_beddoe]

Awww man...ya gotta love that classic skinny steering wheel. Its all part of the "classic" experience. That "feel" of driving a classic.

Make sure you keep it though, they dont make them anymore. Not even after market. Its one of those parts they just dont make, period!

Steering wheels, air cleaners, hub caps and wheel covers, etc..etc.  No reproduction!!