Hello all...I've just finished doing the 3.4 swap, and the motor runs great, except I cannot get it to idle reliably @ or lower than 1k (in park). As well, when I put it into gear (automatic) it dies. Obviously I cannot properly set/check the timing if I can't get it to stay going while in gear.

Thoughts?

I am running a carb'd setup w/390CFM Holley...recently rebuilt, was running very nicely prior to the swap. Cleaned it, changed needles, dialed in float levels, etc. Checked vacuum, and its around 19.5in and rock steady @1500RPM. Fuel flow is also not a problem.

Any help is greatly appreciated!

P.S.: No ECM of any kind.