Inman,
I think the 289 runs pretty well with about a 600-650 potato. I would probably opt. for the dual plane manifold, especially with that tall cam, it well help you on the low end and hurt just a little on top but, you won't be able to tell the differnce at the top.
What a lot of fellow potatoheads are using is the Performer RPM and a Holley 650 on the 302 with good results.
Good Luck!
"Mr. Potato Head"
I think the 289 runs pretty well with about a 600-650 potato. I would probably opt. for the dual plane manifold, especially with that tall cam, it well help you on the low end and hurt just a little on top but, you won't be able to tell the differnce at the top.
What a lot of fellow potatoheads are using is the Performer RPM and a Holley 650 on the 302 with good results.
Good Luck!
"Mr. Potato Head"