My Power Disk Brakes are frustrating me...
you need to find out why you only have 10" of vaccum.do you have a wild cam,vaccum leak,you should have a lot more for a stock 74 duster.assumming its stock,check your hose going to the booster,could be cracked
Bought the car in December "as is" which a Holley 750 DP on a single plane manifold, which I switched to an Edelbrock 750 cfm that I found on Craigslist because I couldn't get the thing to idle right. That helped TONS!!!! The cam seems pretty aggressive since the idle is very choppy. I don't know the specs of the cam.
he meations a different cam in his first post; I'm assuming its something quite radical with no idle quality's, if not he has a very bad engine vaccum leak or something
I did mention changing the cam, but I think I should have mentioned the current cam seems pretty aggressive. Damn thing idles happily at about 1100 RPM, and even that's choppy.
As far as vacuum leaks go, I pulled 5-10"/hg with the Holley and about the same with the Edelbrock. The carb sits on a single plane MOPAR manifold. I don't see where there could be a vacuum leak unless it's leaking by the intake-to-head gasket. Is that possible? I could re-tighten the manifold. The carb is on pretty snug/tight.
I'm going to try the other suggestions. I need to run to the hardware store, when I get back I'm going to do the following:
- Tighten up the rear drums.
- Check the feel of the brakes with the engine off
I'm pretty sure that with the engine off, the pedal is stiffer with a couple of pumps. I'll have to double check.
I know I can swap to manual, but choosing the right master cylinder is quite confusing. I mean, I don't know what size to choose. I like those aluminum master cylinders and I always see them at the junk yards. I know I'd need an adapter, but I also read that I need the "manual" brake rod. Where could I find that anyway?
Anyway, I'll post back my findings and a few pics ASAP. I really want to get this thing streetable. Not being able to stop on a dime as sort of been my...uh...show stopper. lol
