What's the pn for the air connection between the tb and the maf sensor for an LT1 transam or ram air pontiac?
I'd like to fabricate a similar system for my impala and must have this part to connect F-car maf to the TB.
Thanks

Go to Home Depot or Lowes and pick up a 4" to 3" fernco pvc coupler. I think that is the correct size or maybe a little smaller? Or go to Next Generation parts and pay nearly $100 for that peice.