Just got my engine totally rebuilt. Installed it last night and i have a constant misfire in cylinders 1 and 3 (right side bank) Checked coils, not the problem. Spark plugs are new ( NGK iriduim 1 step colder) gapped to .030. coils are getting spark and injectors are getting signals (checked with noid light)
Is it normal for a rebuilt engine to misfire ?
only ran it for about 20 minutes..