The other day I was cleaning out some stuff and found the turbo intake/exhaust flanges for the my defunct 292 turbo project and then got out my intake flange for the 4200.
Just for giggles I lined the 292 intake flange up with 4200 intake flange.... and well the individual 4200 runner ( 2.74" x 1.38" about 3.39 in ^2 area)are really close in size of the 292 shared runner (2.45" x 1.48" rect. about 3.25 in ^2).
