Just wondering if this is a direct swap on a 95 Z28 or are any modifications necessary?

 

It's a direct bolt-in. When I had them I used the stock injector constant in the pcm and didn't have any issues. Just runs a hair rich, but no problem with it.

 

Funny that it runs rich, which I thought would be the case since the SVO's are rated at a slightly lower fuel pressure (thus the higher LT1 fuel pressure would actually make the 24lb SVO's act more like 25.5 lb'ers). I swapped my stock 24lb'ers for the SVO 24 lb'ers, and now I constantly get a SES code for a lean condition. The SES light stays on for 3-4 days, goes off for a day then comes back. Engine runs really smooth though, so I disregard it.