[blykins]

The GT40 heads may be a good size for you....you don't need terribly large valves with that displacement.

If you wanna go with a hydraulic roller, the Comp Cams cam that I mentioned would work well for you I think. Then I remembered that I have a 351 and you have a 289....hehehe....the firing orders are different I think...therefore you couldn't use the cam I had in mind.

However, this cam should work well for your application...

Comp Cams 31-452-8.

You'll need a "spider" for your lifters....

If 6500 revs is adequate, an Edelbrock Performer RPM Air Gap should fit your needs nicely.

If I get a chance, I'll run your combo through Desktop Dyno 2000 and see what kind of numbers we get. I have quite a bit of faith in it....it's been right for me several times.