[patrickt]

Originally Posted by davids2toys

You wouldn't think so.
OK, I looked up your engine and you are right, 18-20.
Then I found this which states 25 ft lbs for Intake into Alum heads.
http://www.edelbrock.com/automotive/.../6000/6007.pdf

I have a Blue Thunder aluminum IM. The only part my builder specifically instructed me to retorque after a few hundred miles was the IM. The torque figure was 32 ft/lbs. I had to use a crow foot extension to get to a couple of them ... and that was going on ten years ago.