I'll send funds for the 250 dyno also, as I did for the 292 dyno. Personally, I'd like to see some other camshafts tested.

Comp Cams 260H (0.489 lift/212 0.050 duration) so often mentioned as a recommendation for the 250.
Isky 256 Supercam (0.492 lift/202 0.050 duration) or Schneider 256H (0.470 lift/204 0.050 duration) for those wanting a little more low end torgue.


Can exhaust systems be tested?
Original stock cast manifold.
292 cast manifold
Langdon cast headers
Clifford short tube headers
Long tube headers