The lag has nothing to do with VTEC, the lag has to do with the size of the turbo. Bigger turbo = more lag(most of the time, there are some bigger turbos that spool faster than others) So staying away from VTEC isn't going to help you there, you just have to do your research on your turbos before you do the build. And trust me, it wouldn't be all that different to just build a LS turbo either, not a whole lot you can still do to be different that doesn't require a lot of fabrication.