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Registered
Join Date: Dec 2005
Posts: 3,384
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Any reaon my 1967 engine won't work with Zeniths?
I have webers on there but while I am rebuilding them can I pop on some Zeniths? The engine is a 1967 with webers. It has a 1968 cross bar. Do these two carbs install the same on the same intake?
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10-10-2006, 09:59 AM
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Registered
Join Date: Jul 2003
Location: morro bay, california
Posts: 895
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They will work. Should be a painless swap out, as long as the Zeniths are in decent shape internally and jetted correctly for your engine. Sometimes the smog control devices on Zeniths are better off being removed and plugged up.
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_____________________________ Clint Smith www.RebelRacingProducts.com 1970 911T ----> RGruppe RS/R (mexico blue) 1995 993 becoming an RS (gran prix white) |
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10-10-2006, 06:22 PM
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It'll be just a touch rich with the stock 2.2 jetting but otherwise should be fine. Remove and plug the auxilary enrichment circuit (emmisions stuff) set the idle screws at 2.5 turns and dial her in, you might not go back to the Webers
 Also be sure to adjust the accel pumps for even flow, duration, and make sure they all begin to squirt when the throttle is cracked even a little. Zeniths are the little secret no one talks about. I've got 36mm venturis, .65 idles, 1.75 mains and my 3.0 purrs like a kitten until I crack the throttle. Currently rebuilding the passenger size carb to repair a worn throttle shaft bore caused by bent linkage, that's the only real trouble I've ever had with them.
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Email me about 911 exhaust stud repair tools, rsr911@neo.rr.com 1966 912 converted to 3.0 and IROC body SOLD unfortunately  1986 Ford F350 Crew Cab 7.3 IDI diesel, Banks Sidewinder turbo, ZF5 5spd, 4WD Dana 60 king pin front, DRW, pintle hook and receiver hitch, all steel flat bed with gooseneck hidden hitch. Awesome towing capacity! |
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10-10-2006, 09:23 PM
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1966 Porsche 912 1981 3.0SC
