1. Cylinder #4 exploded at the track last year. 2. Still not sure why and want to know so I can fix the problem. 3. Rebuilding motor now. 4. Sent injectors to RC Engineering to be cleaned and flow balanced
LESSON: I should have marked the injectors with cylinder numbers they came from BEFORE sending to RC. One was only flowing 638 all others over 700CC/Min. Don't know if the low flow injectors was the cylinder that went out. Too bad...