Sold my speed shop and selling leftover inventory    Up for sale is a nice Edelbrock Vintage Torker 383 intake degreased washed  then blasted then coated with Eastwoods aluma cote its expensive but look at the results Evere spec of dirt was removed I take pride in my work  Looks NEW  A tap has been run through all the hole to make for a hassle free instillation   I always remove all pipe plugs so you get a fresh start   Outer carb holes have 3/8 helicolis  supplied with intake are step down carb studs 3/8 to 5/16 as seen in picture  Other inner 5/16 bolt pattern is stock   Had a carb bolted on fits fine Selling cheaper because of that