What I have is a 5.3 in a ecsb. It has 05' up e-fans, 224/226/581/581 on a 114+4, lunatti double springs, comp chrome moly push rods, ls7 lifters, 4:56's 4l80e, 4000 PTC verter, 150 shot thru a nos plate system, and 285/50/20's. Any suggestions on improvements before I go bigger? i have an extra cam, its227/235/614/621/on a 113. I have thought about puting it in. Just dont want to completely kill my bottom end.

 

milled 243s and tbss/nnbs intake if you havent got already....definitely better than putting in that other big cam....

 

Lol, I sold a tbss intake about 6 months ago cause the tuner said it wasn't going to help me enough to even notice.