How would a set 1.9 rockers cause a low end lack of power?I know this is a older thread but, I have read much here about the 1.9 rockers causing low end slugishness, but I didnt find that to be the case at all. Now be it that I dropped from a 3.4 pulley to a 3.3 at the same time, I now could get some serious tire spin. I thought it to be worth my time although the back side of the engine was rather difficult to get at. Worth it for me:icon_lol:
Now as far as a gain I would say you typically see less then a 5 hp gain. Dyno results have shown a 2-3 hp gain.