Barely used. Comes with carb stud kit installed on the intake, assume the stock calibration for electric choke on the carb.
$250obo each + shipping or I'll do $450 + shipping for the pair.
Yes, all 3 are heavily modified for EFI usage. They were tested in various configurations through the years. Interestingly, even though early conventional wisdom was that MPI needed a single plane, that didn't really play out. Dual plane testing was not a lot different than as they are now...
Looking for a ready to go shortblock or longblock, RB based 440-540". Pretty flexible but looking for a street friendly engine so nothing too radical. Solid or roller cam is fine just not a monster one.