What!!!! Can you please ex-pond on that further BillT?! I'v never heard that (in a mechanical sense), except in Northrops' "Black Widow", Twin engine reconesence plane.
Cars known to be "Black Widows" were '57 Chevy 150 Model 2-Dr Sedans with some special components that Chevrolet sent to SEDCO in Atlanta, GA to be built into Race Cars for Nascar Competition, using some additional Factory parts that were available from GM. It is better explained here: http://www.57classicchevy.com/1957-chevrolet-black-widow.html and here: http://www.57chevyblackwidow.com/ (Click onto the Links on the left side for detailed info) Be sure to click onto "Known Facts" and "Competition Guide Info" Bill
The Black Widow That's right Bill, Ive been racing this car for 10 years and decided to put on the street.:banana: changing the spooled rear to a posi and a good gear pack.leaving the 600hp crossram 2x4brl 350,4speed T-10 trans,so I thought to build a special one off spent $30k so far ..Planning to go to hot augest nights in 2015:2_thumbs_up_-_anima:2_thumbs_up_-_anima Bruce PS the car did a 5.75 @1/8 mile (not bad)