30# injectors are more than you need. A top fuel dragster could almost pass emissions with a good set of cats, so I really don't understand why yours failed like it did. Check your paperwork and see if there are any CO2 and O2 numbers and post them.
Take care
~Chris
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Retired Moderator
MustangNet
My site:
JimPorterRacing
RACECAR spelled backwards is RACECAR
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