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WydRyd WydRyd is offline
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Join Date: Mar 2002
Posts: 3,563
Headers glow red for only one reason, there’s fuel burning inside. The two main reasons are a VERY rich mixture and late ignition timing - which doesn’t give the fuel enough time to burn inside the combustion chamber.

Test it for yourself, let your engine idle and crank the ignition timing back to the point where it barely runs, then get out the marshmallows and enjoy
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Merv
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
Old 12-18-2007, 02:51 PM
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