http://automotivemileposts.com/tbird/images/tbird1957engine.jpgSorry I should have specified 1x4v.
This is the best image I found of an original style filter with the old mesh reinforcing. As you can see the element fills the lower part of the filter completely.
The 13.3 x 2.25 is what I have but it looks too small for the base. Teros292 the dimensions you listed sound like what I suspected would be more like the correct size.
I was also thinking the larger OD and smaller ID would give better air flow with the greater paper surface area, which might hopefully equate to some improved performance.
I did do some measuring and thought it could be as high as 2.5 inches and still give enough hood clearance.
312T85Bird I'll check out your recommendations and see what they have, thanks.
I wasn't worried about the old style reinforcing but more something that looks like it fits properly and maybe flows better. I should be over in the USA next year for a vacation/shopping trip so if there are any more suggestions that would be great.
Thanks everyone for your imput.