http://www.champpans.com/products/p/ls1000/
I know the dude that runs the parts desk(somewhat local to me) a ton of companies re-badge this pan and sell it as there own for way more money including autokraft, tilden motorsports, pacific fab and many more
Twin impco 425 mixers on a dual adapter with Holley baseplate and air filter box. Both vaporizers were rebuilt recently. Enough fuel to support 600hp easily. Had this on a 12.9:1 comp. SBC. one mixer alone wasn't enough, went turbocharged LS and this is collecting dust.
$500 will ship. located...