i bought  a 340 engine , it came with freshened x heads still in bags  from the  machine  shop. i recently bought a edelbrock performer intake to use when i get the  motor  put together  . with the  heads sitting on the block the intake  will not properly set down on the  heads, this leads me  to think the heads   have  been milled.. is there any way to check this ?  phil
	
		
			
		
		
	
				
			
	
















