They do mount in front of the shock towers, right above the distributor.
You may run into clearance problems because of the distributor.
At least, that's what happened with mine.
When I had the original 302 in the car, the monte carlo bar would have to be pressed tightly in between the cables on the distributor cap so there was no way I could pull them off the cap with the bar in place. Taking the distributor cap off was completely out of question without removing the m c bar.
Now with the 351 and the Duraspark distributor it is simply impossible to even get the bar into the car.
So I never put it in, though I'd love to use it.
Did anybody else have those problems? As far as I know, there is only the straight one available for our Mustangs or has anybody seen another type of bar?
Not wanting to hijack the thread, but while we're at it.........