C4 Vacumn Source

[ront]

I am converting from 3 speed to C4. Can I get the modulator vacumn source from the vacumn advance line?
It is a stock 302 with 4 barrel.

 

[Viperwolf1]

Use full manifold vac. Should be a port at the back of the intake.

 

[Explorer]

No, you need manifold vacuum.

 

[ront]

My manifold vacumn source goes to the power brake booster. I'll use some sort of T to tap in.
Thanks,

 

[Mark]

My manifold vacumn source goes to the power brake booster. I'll use some sort of T to tap in.
Thanks,

The factory used a T also w/ a 3/16" line going to your modulator.

 

[Dan's73]

yup, what Mark said....."T" off of the rear manifold vacuum & run to the brake booster & modulator

 

[ront]

I did this today and it worked fine.

Thanks for the help ----

 

[BwoncoHowie]

My manifold vacumn source goes to the power brake booster. I'll use some sort of T to tap in.
Thanks,

Yes or get a vacuum tree off the intake manifold of a 302 that is already equipped with an automatic.


~BH~