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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,563
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Jon, yes in theory a well tuned fuel system would be OK in the mid 12's. Trouble is air cooled engines do not control engine temps well enough when it comes to changes in environment. On a very hot humid day you will need that insurance of high 11's AFR.

Keith, headers can glow red at idle if there is a significant balance problem.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 02-07-2010, 09:53 AM
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