Breather Vrs. Vacuum on IDA's

Cable Guy · #1 (**permalink**) 04-10-2002, 11:39 AM

Can anyone suggest which way to go on a 427FE with 48 IDA's.

Inglese is building and asked whether I would want to be adding a vaccum or just use a couple of breathers.

Cobra built for 75% street.

Thanks

Mike I · #2 (**permalink**) 04-10-2002, 12:37 PM

Cable Guy,

The vacuum kit option is probably what Inglese is asking you to decide on. It's a network of plumbing (i.e. small I.D. hard lines and fittings installed either above or below the manifold) that takes a vacuum signal from each of the intake ports below the throttle plates. Independent Runner manifolds have no other way to supply a strong enough vacuum signal. If you plan on running a power brake system or other accessory requiring engine vacuum you'll need this option.

Mike