if you're getting a max of 3* of KR, i'd pulley up and use the 3.4 instead and add timing. i ran a 13.6@102 with and b4 the 1.9 rockers with 20-24* of timing. grant it i used alky, but with the proper tune and fueling u can hit mid 13s with the 3.4 pulley and even use the AL104s instead of the AL103s