j10 360/Carb

GratefulTread

Well, I broke down and installed the Performer 1406...600CFM & electric choke; bolted on and it fired right up. Runs at idle smooth without tweaking, and great acceleration, it all works! Except...and I hate this, it sounds too stupid... the air filter stud doesn't thread into anything! #-o I can't see any threads in the hole it should sit in, and it doesn't catch threads at the bottom of the hole, and shining a little light in there I don't see anything threaded...what the hell? It isn't the wrong size, the wingnut from the old stud on the Holley screws on either side of the stud, so not stripped. The install video and paperwork just say basically screw it in and cut off the excess. I hope this is just me missing something painfully obvious, or a weird manufacturing defect, but I guess I have another call to Edelbrock to make. JB Weld... :-| maybe that would work....

1980_Cj7

GratefulTread wrote
JB Weld... :-| maybe that would work....

Right up until the first time you have to take the top off the carb to change jets or squirters or rebuild it.

Did it come with a threaded rod/stud? I had trouble finding one to fit our 750 Performer. I tried several different sizes and even metric. Forget what finally fit. If I recall, there are two size threads down in the carb, a larger size up top, then a smaller threaded hole further down below that. Or am I hallucinating again from breathing too much carb cleaner ?

GratefulTread

Yeah, the rebuild, can't wait for that...no glue.... Yes. it came with a 5 inch threaded stud that looks like it should just screw right into the center hole. The old wing nut fits it just fine but it doesn't hook up, or even feel like it's cross threaded, nothing. I already mounted it in the truck (and I can't quite get in the engine far enough to really see what's happening down in there), hate to take it out again but that's obviously about to happen again. :smile: I've either really missed something simple or the thing is defective, 'cause the instructions barely mention the stud step...

Goose

the stud is stepped larger at the bottom if i remember right.. I will pull mine out later and look ..

GratefulTread

Talked with Edelbrock again, they say it should easily thread into the carb. Pulled it off and there are no threads at the bottom. Looks like a defect, I'm taking it back for an exchange. Certainly going to pull the new one out and try it first!

1980_Cj7

GratefulTread wrote
Talked with Edelbrock again, they say it should easily thread into the carb. Pulled it off and there are no threads at the bottom. Looks like a defect, I'm taking it back for an exchange. Certainly going to pull the new one out and try it first!

Ah ha! I finally found somebody else with luck like mine. Probably only one in a million carbs would come thru with a manufacturing defect like that, and I'd be the lucky one to get it. Sounds like I have competition now though, ha, ha.

fuzz401

gee and I am running a 950dp on my 401 and thinking about going to a 1050 carb next my 950 has 95/99 jets 3.5 PV in front and blocked in the back the 850 I had I could get no color on the plugs

GratefulTread

Back from the store- new carb bolted on easy, running great, and with an air filter topping it all off! :lo1l: =D> :mrgreen: Aside from the obvious, this was a great upgrade to my truck! I hope I can keep my foot out of it long enough to figure out mileage! :? Thanks to all for the help!

AMX69PHATTY

fuzz401,
maybe try some colder spark plugs to see if you can get them to color.
Too hot of a spark plug will not take on color.
:-|

fuzz401

I am useing AR3933 plugs now was useing 63 before the 950 color was not there with the 950 have color with the 63 plugs

GratefulTread

Just in case you were wondering....can't keep my foot out of it! :t:

Goose

Yea fuzz you might be able to use all that 950.. but it isnt anywhere near stock..and I'm betting it sees way more than 4500 rpm.. Dont get me wrong here.. Big is Good when you can use it.. but bigger doesnt always mean faster..a 950 dp or 1050 on a stock or near stock street engine in a 5800 lb J-10?? that would be a disaster..not to mention be a pain in the ass to tune. however the crisp throttle response and bottom end torque from a properly sized and tuned carb will make the truck seem much faster .. In my not always humble opinion lots of folks would be happier if they defined a performance increase by driveability. Nothing takes the fun out of a fast car/jeep etc than a bunch of nagging annoyances like overheating, loading up, hard to start, no hot starts etc.. to each his own though..

fuzz401

6500 to 7000 shifting :roll:

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