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Old 01-09-2013, 12:37 AM   #1
zu13
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Default 1989 corvette with a carbureted engine.

Is anyone else running this? I just got my vette today and was wandering if this is a common mod to do. I have a 650 holley 4 barrel carburetor hooked up under the hood. Along with a TCL on the transmission.
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Old 01-09-2013, 03:44 AM   #3
Keystring
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Yep. It's how I bought mine too..

Click the image to open in full size.
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Old 01-09-2013, 12:33 PM   #4
383vett
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How does it run?
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Old 01-09-2013, 01:46 PM   #5
zu13
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well i really like it but i have only had it for one day now...
and it is my first carberated engine!
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Old 01-09-2013, 05:51 PM   #6
wilcar
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Kind of looks like an edel. carb to me. The distributor (HEI) does not seem to have a vacuum can on it?? Maybe it is on the other side. You really should be using a pre computer controlled vacuum advance distributor with the carb set up if your HEI is not one. Some guys use the computer HEI and not sure how that can give decent performance. The 4309 Mallory FPR is a good unit but I know there are a few on thi s forum that say that if you still have the high pressure in tank pump the 4309 may not handle the excessive pressure for very long. I have the 4309 FPR on my 84 but my stock pump only puts out 14 psi.
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Old 01-10-2013, 03:30 AM   #7
Keystring
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Quote:
Originally Posted by wilcar View Post
Kind of looks like an edel. carb to me. The distributor (HEI) does not seem to have a vacuum can on it?? Maybe it is on the other side. You really should be using a pre computer controlled vacuum advance distributor with the carb set up if your HEI is not one. Some guys use the computer HEI and not sure how that can give decent performance. The 4309 Mallory FPR is a good unit but I know there are a few on thi s forum that say that if you still have the high pressure in tank pump the 4309 may not handle the excessive pressure for very long. I have the 4309 FPR on my 84 but my stock pump only puts out 14 psi.
That's a picture of my engine, not the OP's.

The picture is from a couple of years ago.


I have a vacuum advance distributor on it now, although it ran fine with the old one.
Gas mileage averaged about 25 mpg highway and the engine seemed to pull pretty good with the stock HEI.

I don't race (street or track) so there wouldn't be any way for me to compare the difference between the two
distributors and how they work.


Quote:
The 4309 Mallory FPR is a good unit but I know there are a few on thi s forum that say that if you still have the high pressure in tank pump the 4309 may not handle the excessive pressure for very long. I have the 4309 FPR on my 84 but my stock pump only puts out 14 psi.
I've had it on there for the past two (2) years with no problems.

Last edited by Keystring; 01-10-2013 at 03:39 AM.
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Old 01-10-2013, 10:16 AM   #8
wilcar
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Sorry about the mis-post Keystring. Glad to hear you have a vac. advance HEI now, am sure it works better than the old computer control unit. The Mallory 4309 unit is a quality one and am glad to hear it works well on your set up. 25 MPG is great for a carbed set up. My carbed 84 got 23 MPG on my last 600 mile road trip. I am going to try a quadrajet carb for a little better performance and mileage than my 600 Edel. Nice to hear another happy carb conversion story.
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Old 01-10-2013, 10:16 AM
 
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