Help me put "587" heads on a 318

Hmmm looks like we got a pretty wide spectrum of responses here.. from "do it" to "use something else".

Let me re-iterate, I'm on a pretty tight budget, and yeah this is mostly for street performance.. Was hoping to get out the door for $500-750, if I had to spend a grand, maybe I could justify it?. These heads are just sitting in my garage... would there be any benefit to putting these on over my stock 318 heads?

My 318 is a stock 68 2 barrel.. i was originally just going to get a edelbrock performer or weiand stealth intake for the 318 and put a 4 barrel carb on it (that would be about 500 bucks). But my next thought was how bout I freshen up these 587 heads and this LD340 intake (that I also have just taking up space in my garage) with a 4 barrel carb and see what that does to the lil 318...

thoughts?
Budget? have the 587 heads cut .040 (you'll need it to get back the amount you loose on the head gasket). Lap the valves at home, may need to replace the exhaust valves. put your LD340 with a 4 bbl and you'll have a big "seat of the pants" difference.