Sasquatch,
If you're putting this in your '69, yes there will be hood clearance issues. You can get away with it by running either at least a 2" drop base aircleaner, or sometype of low profile setup (like a Weiand or Edelbrock "Proflow").
If you have the hood insulation still intact, it will be resting on the lid.
The Edelbrock is 3.5" taller than stock.
Clayton
If you're not doing any other mods, I'm not sure it's worth it.
It will get approx. 30-40 hp. from what I've experienced. On a stock head motor, I'm not sure it's worth the money. Your heads are the bottleneck anyway. It does look cool and shaves quite a bit of weight though.
If you are rebuilding and going to wake your heads up a little bit, and put more of a performance cam grind in, then definately put this piece on because it is the best option out there for the money, as compared to a Bulldog single plane or some type of Ford 460 intake w/ costly adapter. The Edelbrock 2115 will flow enough air for 5600-5800 rpm and at least 600hp levels.
Being my first post, sorry for the long winded one
