The Moroso air pan is featured in JEGS on the website.
After
www.jegs.com enter Air Pan as a search then click Moroso air pan. The pan for single carb comes in two parts and can be 24" in length . One side has the carb hole. You slide them to desired length cut off the excess or just rivet them together.
The foam is 6' long.. You glue in around the edges then cut and trim. I did it in many stages, shaving off layers with a razor, until my hood sat firmly while making the seal and looking aligned with the body. I used a small light inside the engine compartment in a dark garage to check the seal. Replacement foam is $10 is you make a mistake. I do not know where to get the turkey pan seals. Perhaps Cobra Restorers or Finish Line. Marine supply stores also have a wide selection of various edgings and rubber moulding/sealers which you buy by the foot.