Just a quick question. Can you still do the optic bump with a chip/reflash?

Shayne

Yup. I did.

Yes.

Do you still have a 5068 pump? If so, then you shouldn't try it even without a reflash.

Where or How do I find my pump number? There is a big long serial number on side of the pump that says "Stanadyne Electronic Ignition" is that what the pump number is?

Thanks

Have to take the upper intake manifold off and look at the back of the pump to know for sure.

DS4831-5XXX

Unless you or a previous owner changed it and the ECM PROM, then it will be a 5068.