[my427cobra]

Thanks guys. Your concerns about o-ring integrity is a valid one. And I will carefully rethink my approach.

I do find it a little curious though, that inserting only one end of the injector (either into the machined bore of the throttle body, or the machined bore of the fuel rail) allows quite a bit of injector movement from side to side with little resistance from the o-ring.

I know I am using the right o-rings (size), but still curious.

Again, just an observation.

Cheers
Greg