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  #11  
Old 08-12-2017, 12:46 AM
Woobie Woobie is offline
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Yes. Do let us know.

My reasons are selfish, being that there is a spare stock intake manifold laying around that is for our '70 truck FE. The mounting base is kinda flat.

Back when we had the squarebird, the autolite 4100 was easy to rebuild so we did that.
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  #12  
Old 08-14-2017, 10:44 AM
A390GT A390GT is offline
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Just started the install
probably not going to get it running until after I get back from finding the eclipse with the family next week.

But i took an hour off from cleaning the camper Sunday and got the 4100 off and the summit in place.

The carb fits good. Drops right in place.
What I ran into...

1 choke. I was able to change out the electric choke with a heat riser choke I had from an old Holley. Don't need to do it but I like that it looks kinda stock.

2 fuel line I put on the summit dual fuel inlet on, but I'm going to have to bend a new line with a 90*. Just after the dual fuel is the heater core hose on the front of the intake. There is just enough room to make the bend out to the center of the intake where I can follow the original line down.

3 linkage. The stock linkage goes in but the locking clip won't work on the summit. I'll probably just drill it and pin it if I can't find a clip that will work

4. Air cleaner bolt. I think I'm going to steal the center air cleaner bolt from the 4100. The summit is a two piece that I'm not to confident in.

In a week or so we'll see how she runs
John-
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  #13  
Old 08-15-2017, 01:50 PM
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sidewalkman sidewalkman is offline
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Quote:
Originally Posted by A390GT View Post
Anyone here using summit racings Carburetor, Summit M2008, 600 cfm.
Looking to replace the autolite carb on my stock 60 352 with auto no air

Also do I need a 600cfm or can I go with the 500cfm
Thanks,
John
Hi John

The P.O. of my car used a 465 CFM carb as a replacement so they could keep the hot air tube choke feature. Long story short I am so under carbureted that it starves on the freeway.

You can detune a bigger carb, but the only thing you do when under carbed is replace it. Go big or go home!
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  #14  
Old 08-15-2017, 08:53 PM
A390GT A390GT is offline
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I'm putting the 600 cfm on it. Probably a tad to big, but we will see how she runs and go from there.
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  #15  
Old 08-15-2017, 08:58 PM
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jopizz jopizz is offline
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Quote:
Originally Posted by A390GT View Post
I'm putting the 600 cfm on it. Probably a tad to big, but we will see how she runs and go from there.
The 4100 carburetor is 600 cfm so it's the same.

John
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  #16  
Old 08-16-2017, 11:07 AM
pbf777 pbf777 is offline
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[quote=sidewalkman] Long story short I am so under carbureted that it starves on the freeway.

On the freeway at what throttle angle?

Under normal cruise (65-75 M.P.H.) one generally has the throttle butterflies within the carburetor at a relatively low angle (relative to the wide open) therefore "throttling" the engine to reduce engine power output. So, unless you require wide-open-throttle (W.O.T.) to achieve or maintain these reasonable speeds you are "throttling" or shall we say reducing the capacity of the carburetor as witnessed by the engine.

Perhaps other tuning issues vs. too small of a carburetor?

Scott.
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  #17  
Old 08-16-2017, 02:12 PM
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scumdog scumdog is offline
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Quote:
Originally Posted by sidewalkman View Post
Hi John

The P.O. of my car used a 465 CFM carb as a replacement so they could keep the hot air tube choke feature. Long story short I am so under carbureted that it starves on the freeway.

You can detune a bigger carb, but the only thing you do when under carbed is replace it. Go big or go home!
465cfm should give you good response off the line and would be fine for freeway cruising.
It would only show its lack of size on a top end charge i.e. when going for top speed, it shouldn't 'starve' when cruising on the freeway.

And you might find it a bit of an issue getting an 850cfm 'detuned ' enough for happy all-round driving!
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