As I recall...... With that particular engine combo..... The RB cam made more power than the UD cams ?
The RB as tested made about 5 HP more than the smaller UD, and both made more power than the bigger UD.
I always wondered how the smaller UD with the 1.6 intake rockers would have done, or a single-pattern UD 255 on 108, but just ended up running the RB 1.6/1.5 combo.
