Join Date: Jan 2006
Location: 1231 Upper Trace, Owensboro,KY 42303
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We really liked the new headers! The 2.125" to 2.250" step headers ran a best of 4.920 e.t. and 140+mph, in this mid-July air. The temp was in the low 90's, but the humidity was 98%. The track, like most all tracks right now, was "greasy" due to the daytime sun and heat.
I'm thinking they are doing a better job of scavenging the exhaust, than the other headers. We were able to pull 2 degrees of timing out of it,(we're down to 29* with FRPP SCJ heads) and it didn't lose any e.t. or mph, so I like that part. Also, the i.d. of the collectors have a better gray/leaner color than the other collectors and we did not touch the carb at all. The other headers had a blacker/richer color in the collector.