Originally posted by DennyW
I need some help. I have a mid 90's model fuel injected 454. It idles perfect. When I give it gas it looses vacuum and runs like crap. All the sensers seem to be good. the exhaust seems to be good and fuel pressure is good. Spark is good too. Any suggestions?

So, was this a test to see if we matched your code that you mentioned at the end ?

By your last post, I would look for a vac leak. And also, make sure your base timing is correct.

thats ok whats next?