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Y-Blockhead · 01-13-2021, 11:44 AM

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These past months during the Corona isolation to keep myself busy, I rebuilt a couple of Marvel Schebler carbs I had. I also went thru a few of Zeniths I have.

In swapping out the various carbs for testing The Marvels perform better on my car than any of the Zeniths. Both Marvels easily idle at 400 RPM and are smoother throughout the RPM range.

Two of the Zeniths performed good, it is just that the Marvels were better, IMO. I don't have a Tillotson to play with.

The third Zenith, a newer air balanced Zenith I bought from Snyders was a POS. I could not get it to idle and ran super lean. Upon closer inspection there was excessive clearance in the throttle shaft... on a new carb! After installing an O/S shaft it runs OK, but still not as good as the other Zeniths or the Marvel Scheblers.

I have a Marvel on my car now.

01-13-2021, 11:44 AM	#6
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 5,843	Re: Marvel Carburetor Sponsored Links (Register now to hide all advertisements) These past months during the Corona isolation to keep myself busy, I rebuilt a couple of Marvel Schebler carbs I had. I also went thru a few of Zeniths I have. In swapping out the various carbs for testing The Marvels perform better on my car than any of the Zeniths. Both Marvels easily idle at 400 RPM and are smoother throughout the RPM range. Two of the Zeniths performed good, it is just that the Marvels were better, IMO. I don't have a Tillotson to play with. The third Zenith, a newer air balanced Zenith I bought from Snyders was a POS. I could not get it to idle and ran super lean. Upon closer inspection there was excessive clearance in the throttle shaft... on a new carb! After installing an O/S shaft it runs OK, but still not as good as the other Zeniths or the Marvel Scheblers. I have a Marvel on my car now. Last edited by Y-Blockhead; 01-13-2021 at 02:09 PM.