boostin' ?s

Bernie Benz b.benz at
Thu Apr 3 16:19:13 PDT 2008

On Apr 3, 2008, at 4:04 PM, Tom Egbert wrote:

> Tom,
> How is your son planning to mod the 7A’s valve timing to reduce or
> eliminate the NA‘s valve overlap, such that the turbo can’t just
> blow thru?
> Bernie
> I am not sure, but a spare 3-b head modded for coolant flow should  
> take care of that. I am more interested in my 200 20v getting 24  
> pounds of boost reliably.
>             Tom
The 3B and AAN heads have the 4 outlet external coolant manifold. The  
7A does not, just a single outlet.
Ask him to respond with his valve timing mod plans.


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