I like the quality of my Ford Racing 70mm - On sale for less than $160 at a Ford Racing/Motorsport "catalog" site. Didn't come with a new gasket, but I bought one from same place.
by all the recent plenum testing I'd have to say an Accufab 75 mm if you must get one. Add that to an Accufab upper plenum. May get you 10 RWHP total. Best price on that ?
Accufab 75mm flows great when you have an aftermarket plenum. I felt a difference and the throttle is a lot more touchy. Call Ronnie Diaz www.rdmrdm.com and he'll be able to ship it out to you. He's got good prices.
I was thinking about this whole intake thing and I thin that going with the C&L plenum and the Accufab TB would be the best because C&L is developing the lower intake to match. From reading those results on the test I'm very curious about 70mm vs. 75mm because those test seemed to indicate that the 70 performed better. Does anyone know when you switch TBs can you no longer use the normal fitting CAIs or Densecharger type things?