What size injectors are these?
http://www.flickr.com/photos/53827497@N02/9233790771/
There is a pic of the numbers that are on the sides. Its very hard to read it seems the stamp marks are almost stamped on top of each other. I can make out Edelbrock 3528 and mototron inj-gas-006.
https://www.google.com/search?q=Moto...ient=firefox-a
And, that's at 43.5psi...If the OP has fuel psi at 58...That's MUCHO inj for a 383.
Would be interesting to see the tune file.

