Stumble off idle -

[decooney]

And there it is, IFRs once again! Once you said primary jetting did not help, this was the only other thing I could imagine it would be.

John,
great job sticking to it and for seeing it through.

Now are you able to cruise the car below say 1,800 rpms without issue?

[Grubby]

Originally Posted by decooney

And there it is, IFRs once again! Once you said primary jetting did not help, this was the only other thing I could imagine it would be.

John,
great job sticking to it and for seeing it through.

Now are you able to cruise the car below say 1,800 rpms without issue?

Duane,

In 4th gear it actually pulled 1400rpms without complaint.

I was surprised how little idle mixture screw adjustment was needed after drilling the IFRs. About 1/4 turn from the existing setting.

John

[kgs365]

please post parts...grubby...what do you have for a transmission that you can go as low as 1,400 in 4th?...i looked up my specs and i have a 445 FE...780 Quickfuel...edelbrock heads..cam =HR112 230/233@.050 .544 /.553 lift 1.7 112 LSA...this is my second cam milder then the first.also second carb first was a holley 650 that was too small..the car is much more driveable especially with the cooler weather...I've been watching this tread because I think i'm fighting a similar problem

Kevin