It's not the air filled foil you get at the Home stores, but a foil covered blanket sold for aircraft insulation at Aircraft Spruce called "The Insulator. It's great stuff, easy to work with and works better and cost less than anything I've seen for automotive use.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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