i still had issues with mine, like the tach was wired in through my AEM and DLI but like you said it gets there too quick. It still wasnt 100% right. You should bump the rev limiter 300 rpms and set your shift light earlier. Do you have valve springs? I had Crower springs and retainers so i wasnt scare to rev it.
Although i did spin a main bearing which ultimately put the car out of commission lol