If you're running Webers, it's my understanding that smaller air correction
jets will richen the mixture at high rpm. I assume you've tried that, but
thought I'd mention it in case you hadn't.
- Tony Drews
At 05:20 PM 3/5/2005, rob wrote:
>----- Original Message -----
>From: rob
>To: rot@autox.team.net
>Sent: Saturday, March 05, 2005 4:43 PM
>Subject: dyno running lean
>
>
>Hello folks I have just spent some time tunning. I can get a good Air/fuel
>curve and power all the way up to 5500rpm At 5500 she is still making power
>but the A/F is shooting up into the high 15's --16's and i just have to back
>out The fuel pressure remains at 4 lbs the gage has be ckecked aganst
>another >> the jet changes will only make me rich at the lower rpm she'll
>stummble to get cleaned out but still goes lean . We have been all over the
>board with jetting .With aprox 30 hours of tunning We have not been able to
>get a way from the high A/F at the higher rpms Drilling the pump jet helped
>but only put off the running lean >>Its a Tr-6 Moss's 40 over pistons
>stock thre out except for Good parts 1.55 roller rockers with 40 dcoe's
>11.5 to 1 c/r >>aluminum fly wheel stock clutch and 4 speed curently at 155hp
>to the wheels thanks rob
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