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> Carb Tuning and CA gas
yeahmag
post Oct 9 2017, 09:30 PM
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From: Pasadena, CA
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Well, another milestone has been passed. I started my journey with Dell's here in CA with the standard 60 idle jet (mind you I've been running Dells for over 20 years) Over the years (and different motors) I've slowly crept up. 62's in the early 2000's. 65's in 2010 or so... Today, tuning the 914 after my 3 year build, 70's! Yup... you heard right - 70!!! The same motor 3 years ago ran a 65.

I couldn't believe it myself. My LM-1 is acting up, so I couldn't verify my AFR, but I even rebuilt the carbs first. It went for snapping and popping out the exhaust, a stumble in transition, and the mixture screws not responding "cleanly" to clean low end and a nice "report" from the mixture screws.

I'll be picking up a new O2 sensor to see where it landed...

2056cc
2L heads cleaned up
86A cam
9.5: CR
4-1 header with Phase 9 muffler
40 Dellorto DRLA: 200 Air, 145 main, 70 idle

Welcome to 10% ethanol oxygenated fuel...

-Aaron
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