Chevrolet Repair: HEI question, abstract question, scan tool

Question
hi, i've got a 350 out of an 88 iroc that i put into my 84 cadillac.  now what i did was hook up the DFI system from the cadillac onto the 350 intake, and used all the ECM and wiring/sensors.  Engine runs fine with no codes, but it has a slight misfire from both banks, i've replaced every ignition component with known good ones, from dist. to plugs LOL.  I used the smaller hei chevy distributor and wired it to the caddy distributor harness.  now, the chevy is timed at 0 degress, where the caddy engine is timed at 10 degrees.  would you think that the ignition module would be able to control the timing properly?  wondering if this may be my slight misfire issue or could it be valve adjustment.  Wondering what you take would be on this would be.  I know its a bit of an abstract question, but I'm an adventerous mechanic haha!

Answer
Lance,
without getting this car on a scan tool to find out where the misfire is coming from, I would need to know which cylinder is misfiring.  A scan tool would be able to tell you that.
Maybe it's an injector problem.  Get the car to a shop with a scan tool.
Hope this helps,
Tom