Parts ID: Early Olds? Pontiac?

[4-barrel Mike]

Old abandoned project (not mine).  Attempt was made to use one side on a Model A Ford block.

What's it fit?  Manufacturer?





Base(s) may have been trimmed.

Mike

[desotoman]

Mike,

Could be a Cad also. Look on the sides of the injectors, if they have not been machined there will be casting data if they are Hilborn's. There will aslo be a small number that has been stamped into the injector, usually between the center two ports, like 131 etc.

Tom G.

[4-barrel Mike]

No stamped or cast numbers anywhere 

Outer ports ~10 3/4" center-to-center
Inner ports ~7 13/16" center-to-center
Distance between inner ports ~6 1/2"

MIke