Thanks for the input on this fella's!
Looks like it makes sense to move forward with it.

not sure if you will see gains with the t/r was the indy ported ,i think if you port a 772 and converted to yours it will make more power or a sheet metal the rp s move some air 360 cfm just my 2 cents.

Les I have the same combination with W9's and a TR with two 1000 CFM throttle bodies. It really picked up when I changed from one 1250 CFM Throttle body to two 1000. Feed the animal.

Be hard to get cross section you will need.

Shoot for 4.250-4.500" in the Plenum (It will be paper thin and Or need weld at that point)

what tunnel ram are you running ? and what et/mph did it change

Ian, my intake is not ported.
After a discussion I had with Brett a while back, I was planning on getting rid of my 4150 to 4500 adapter and opening it up for the dominator.
But every time I walk into my garage I see that pro dominator tunnel ram sitting there. Seems a shame not to use it if can be made to work well.

Lawndart, is yours a sheet metal TR ?

twins look better lol this is a indy i converted to dom

Yes sir it is, It's a Hogan manifold. I bought from a guy that sold his heads and a cast intake.

That's a nice looking cast intake.

thank you .nice set up you have ,just keep a eye on your fan have seen a few brake or fly apart ,your hogan intake is way better than any holley t/r .R3DART but i think with some port work the holley may get close to the indy unported and a ported one will give you around 25 hp more,if you are chasing hp then there is only one way to go .up to you my friend