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1986 930 1986 930 is offline
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Join Date: May 2011
Location: Cape Canaveral Florida
Posts: 289
I think that CIS is ok. It is when you start the upgrades that you start having problems with hurting the engine. You still have to tune it properly for the point where you lean out on bosst. The adjustable WUR I think helps a little with making the system work better. If you leave the motor stock, and properly tune it, it should be just fine. CIS is used on many cars and 911s 1974-1983 and they do fine as well.

1986 930 Ultra-Smith RUF Slant Nose conversion, RUF VB, K-27 HF-S, B&B Headers and Exhaust, RUF Short Shifter, RUF Interior
Old 06-11-2013, 01:46 PM
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