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					Originally Posted by  bigblockv6
					 
				 
				The Mr. Gasket #1937 adapter won't work with the trapezoid base 351E Magnum manifold, A few years back I machined up 20 or so adapters for the trapezoid base manifold and sold them off to the members of this site. A few have switched over to 4bbl carbs so someone may have an extra adapter. Another alternative is convert your existing manifold to a 4bbl, it's a relatively easy procedure that does not require welding. 
			
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 I have no problem switching to a 4bbl carb.  What is the procedure to convert my manifold?  Buy a new one?