Re: holley jet size 35?
[Re: Cab_Burge]
#1697519
11/11/14 06:43 PM
11/11/14 06:43 PM
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Joined: Aug 2006
Posts: 2,141 junction city oregon
viperblue72
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Quote:
Holley marks there jets with a flow number, not a inner diameter
I am still confused with this number. My trick has been getting terrible mileage. I believe the carb should have either a #56 or size 56 can't remember. This is a 1968 carburetor so I just wonder if they numbered the jets differently back then? It can't be a size 35 can it?
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Re: holley jet size 35?
[Re: viperblue72]
#1697520
11/11/14 06:46 PM
11/11/14 06:46 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
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Maybe it's a mis stamped 53?
Had a similar issue with my 72 swinger's 225. turned out the reman carb had a jet 6 numbers bigger than stock. Bought the right jet and things were all good. Mine was supposed to be a #50 IIRC.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: holley jet size 35?
[Re: Supercuda]
#1697521
11/11/14 07:11 PM
11/11/14 07:11 PM
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Joined: Aug 2006
Posts: 2,141 junction city oregon
viperblue72
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Quote:
Maybe it's a mis stamped 53?
Had a similar issue with my 72 swinger's 225. turned out the reman carb had a jet 6 numbers bigger than stock. Bought the right jet and things were all good. Mine was supposed to be a #50 IIRC.
That was my thoughts too. Maybe stamped backwards.
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Re: holley jet size 35?
[Re: 62maxwgn]
#1697525
11/11/14 08:27 PM
11/11/14 08:27 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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Circle Track
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What's going on with the mileage? what eng yr make model gears timing choke recent work, everything. Recent issue or always there. What MPG
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Re: holley jet size 35?
[Re: RapidRobert]
#1697526
11/11/14 08:30 PM
11/11/14 08:30 PM
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Joined: Feb 2003
Posts: 8,020 Pangaea
B5 Bee
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That "#35" jet looks closer to a #85.
And it looks more like a Carter jet, Holley stamps jet #s on the side, not the face.
Last edited by B5 Bee; 11/11/14 08:33 PM.
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Re: holley jet size 35?
[Re: RapidRobert]
#1697528
11/12/14 02:59 PM
11/12/14 02:59 PM
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Joined: Aug 2006
Posts: 2,141 junction city oregon
viperblue72
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Quote:
What's going on with the mileage? what eng yr make model gears timing choke recent work, everything. Recent issue or always there. What MPG
The truck is a '81 2wd slant 6 auto. It has the lean burn on it. The vacuum pot wasn't working. I replaced the distributor yesterday for one with vacuum advance that's actually working. I also rebuilt the carburetor, but the carb seemed ok. The gears seem to be likely 3.55s. I was getting 11 mpg. Hopefully these changes will help. I have an msd 6al that's going on it as well. I may just order a jet, so that I know what's in it. I don't have drill bits that small.
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Re: holley jet size 35?
[Re: viperblue72]
#1697529
11/12/14 06:06 PM
11/12/14 06:06 PM
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Posts: 36,041 Lincoln Nebraska
RapidRobert
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OK so you have a 68 stand alone (non lean burn) carb & a good vac adv dist. other than the std tune up issues: compression check/no vac leaks/ballpark timing/good plugs/wires etc as you said you might order some bigger jets & good point the guy mentioned that Holly jets are stamped on the side (at least the ones in my white plastic holley jet box are). Oreillys is pretty good about ordering run of the mill speed parts & could probably get some jets in for you. Not sure which company sells them individually but I've seen em. You might get a 40-50-60 & do some experimenting. Holler how things go
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Re: holley jet size 35?
[Re: viperblue72]
#1697531
11/12/14 10:37 PM
11/12/14 10:37 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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To clarify: it got 14mpg with the carter and the NOS dist installed then ONLY the carb was switched to the holley (same dist) & the mileage went downhill?. Same ported or non ported for the can? I'm assuming there is a good reason why you dont put the carter back on there. those 1920's are so simple/fun to work with. I would wanna get to the bottom of it just for the satisfaction. I'd get some jets and recheck the float (level/saturation)/no base gasket or vac line leak. Holler how it turns out. not sure the 35 is right & I have one & I'll see if I can pull the bowl & see what jet is in it (not sure what year it is) but what I have outa tell us something. EDIT reread & saw the "terribly". describe that
Last edited by RapidRobert; 11/12/14 10:39 PM.
live every 24 hour block of time like it's your last day on earth
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Re: holley jet size 35?
[Re: RapidRobert]
#1697532
11/12/14 11:11 PM
11/12/14 11:11 PM
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Joined: Aug 2006
Posts: 2,141 junction city oregon
viperblue72
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Quote:
To clarify: it got 14mpg with the carter and the NOS dist installed then ONLY the carb was switched to the holley (same dist) & the mileage went downhill?. Same ported or non ported for the can? I'm assuming there is a good reason why you dont put the carter back on there. those 1920's are so simple/fun to work with. I would wanna get to the bottom of it just for the satisfaction. I'd get some jets and recheck the float (level/saturation)/no base gasket or vac line leak. Holler how it turns out. not sure the 35 is right & I have one & I'll see if I can pull the bowl & see what jet is in it (not sure what year it is) but what I have outa tell us something. EDIT reread & saw the "terribly". describe that
Robert that's correct, only changed the carburetor to begin with. The Carter was remanned and was very wore out. I also prefer the simplicity of a holley. I ordered a #53 that I will compare and put in. Not sure what you mean by ported or non ported can. I will also report back if the distributor change fixes it.
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Re: holley jet size 35?
[Re: viperblue72]
#1697533
11/12/14 11:21 PM
11/12/14 11:21 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
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"ported/non ported" was the vac can plumbed to the ported (likely) base nipple on both carbs (no vac to the can at idle). Stay in touch with this. EDIT Did it take alot more throttle with the holley than it did with the carter to get the same amount of accelleration?
Last edited by RapidRobert; 11/12/14 11:24 PM.
live every 24 hour block of time like it's your last day on earth
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Re: holley jet size 35?
[Re: B5 Bee]
#1697535
11/12/14 11:58 PM
11/12/14 11:58 PM
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Joined: Jan 2003
Posts: 15,480 Omaha Ne
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Quote:
And it looks more like a Carter jet, Holley stamps jet #s on the side, not the face.
I'll disagree. I have a buttload of holley jets from the 70's & 80's, All stamped on the face
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