[DeTomaso] intake manifold confusion

[MikeLDrew at aol.com]

In a message dated 9/2/06 15:36:38, redvobra at aol.com writes:


 When I look at the descriptions at Summit, #2750 is listed for 2V 351C's. It 
says that it works on 2-valve heads. Am I missing something here? What does 
2-valve refer to, if not the number of valves per cylinder?

>>>That's not 2-valve.  That's 2-VENTURI, i.e. 2-barrel carb.  
Low-performance 351C motors had a 2V carb, and smaller intake and exhaust ports than the 4V 
motors.
 
 >I assume now that the intake that I want is Edelbrock #2665, even though it 
says it's for 4V heads.
 
>>>No, it says it's for 4-barrel carburetor heads (4V)

> Obviously I still have much to learn. Someone help straighten me out here. 
>>

>>>You're on the right track!

BTW, the ports on the 4V heads are arguably TOO large, and to improve flow 
velocity, the Performer 4V intake features runners that are smaller in diameter 
than the ports (about halfway betwen 2V and 4V sized).  This is a good thing.

Mike