let me clarify, they were WAY rich at low RPM after I was adjusting, enough so
that it would barley run below 3k, they leaned out at the upper end.
Marty
----------------------------------------
> From: trmarty@hotmail.com
> To: fot@autox.team.net
> Date: Mon, 26 Aug 2013 22:00:12 -0400
> Subject: [Fot] Lil needle help please
>
> 1296 spitfire. O.S. intake valves. 11.1 CR. Isky cam, don't know the spec
off
> the top my head. Last year I purchased a set the European Spec 1-1/2 S.U.'s
to
> replace the 1-1/4's. I have been struggling getting them to run properly. I
> took the car to a dyno tonight to try and dial them in. No matter how much
I
> dropped the jets I could not get them to richen up enough with the rear
much
> leaner than the front. Best I could get was around 14.5 front and 17 rear.
> Obviously I need a different profile. I have ADN needles in there now that
> came with the carbs. I know there were both the same as I had looked at
them
> previously so it made no sense why the rear was so much leaner than the
front.
> When I got home I pulled them back out and happened to lay them side by
side.
> Ding ding ding looks like somebody had re-profiled the front needle. it was
> about .030 smaller than the rear. that explains the difference in A/F
> readings. Obviously I need to get new needles prior to leaving for R.A. on
> Tuesday. I'll call Joe C. first thing in the morning and see if he can
> overnight some out to me. I need some suggestions to try. What are you
folks
> running in your HS4's on the Spitfires. Any recommendations would be
> appreciated.
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