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Discussion Starter #1
G'Day,

I have installed a 4.6DOHC S/charged engine into my 66 fastback here in Australia.
I have gotten it running but it doesn't seem to be running properly.

I have got 20in of vacuum whilst at idle and don't appear to have any Vacuum leaks.
However when i drive the car and accelerate, the boost gauge won't go above ZERO !!
It definitely has an issue and is definitely lacking power.
there aren't many people here playing with these engines to get advice from.

Can anybody please help with my issue????

Ps.
Its a stock motor with aftermarket fuel rails, pump and fuel return system.

Thanks in advance.
John
 

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Discussion Starter #4
figured it was to do with that it wouldn't allow SC bypass valve to work properly.
Rechecked all lines for vacuum leaks and didn't find any and then blew them out one by one and tested.
It was a blockage in small red vacuum line.
 
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