Still don't quite understand, but I'm running AFR 210 heads on my 355 with 2.08" valves. That valve size shouldn't be a problem in your 406.Engine runs but is set up with a 1050 carb and a drag cam. Wondering about the valve size. Every thing I find puts it borderline.Just looking for clarification.Thanks for cathing that slip up.
They bolted right on without any clearance problem. Been doing fine for 8 years now. Here is how it performs:Now with Steve's combo I would have some clearance concerns.
That's actually a good combo. (Have made some decent power with those "Pro-Ones" also!)Have a small block 400 thirty over with a set of Dart Pro 1's 2.08 intake and 1.60 Exaust Anyone forsee problems on a street strip car. Compression will be 11.3.