Quote:
Originally Posted by Ruby13
Shouldn't many owners do it without a tune so im just not sure if I have a vacuum leak or what could have happened it hard to find a leak specifically. Might take the foam out from under the IM and try it that way.
|
Anytime I've had idle speed anomalies (usually idle will stay high and be slow to drop, I admit), it has been due to an air/vacuum leak. I've got the MSD IM, and they also prescribed 89 in/lbs, but they were specific about raising the torque sequentially (at least 3 passes) and in specific order. I left out the foam also without adverse effect.
I'm sure you know your stuff, but here's MSD's install instructs-
https://documents.holley.com/2700.pdf