We tried cross jetting on circle track cars since it was believed the outside cylinders on a V8 would be richer because of centrifugal force. In fact at one time or another every oval track racer has tried it. The simple truth is all that back woods engineering is wasted time because the manifold plenum equalizes everything out. It isn't exactly perfect in distribution but certainly not worth the trouble of staggered jetting.
The only way to insure a perfect fuel feed is for every intake port to have its own separate venturi and jet.
