3500 hibird timing help

[minc2_2000]

i did the swap with the 3500 lower and 3400 upper intake this past spring.

the car idles pretty rough but not to the point where you cant drive it. sometimes when you start it up it will idle like it has a cam.
it gets bad gas millage also.

so would moving the timing around do anything?

[bszopi]

Welcome to the site.

Sadly, you can't really move the timing around on a DIS ignition, so that is not the answer to your problem. Can you give us some more info on the car/engine? Right now, its hard to answer since we only know you have a 3500 lower and 3400 upper, but no idea what engine this is on.

EDIT: I also went ahead and moved this, as this really isn't an engine swap (which is what the 3x00Swap.com section is for).

[minc2_2000]

engine was out of a 05 g6 has 3500 heads and lower still with the 3400 upper. the car is a 98 malibu that had the 3100 in it. I used the 3100 injectors and rail.