Excuse me but I've been away for the past few months. I ran across the thread below and started to research this little DIY project. I was headed to the 8 injector set-up but this may be cheaper. So what's the deal? Is it worth trying to wire half the injectors in parallel to still achieve an 8 injector set-up. Will just 2 additional BIG injectors work if strategically placed. The batch fire thing doesn't seem too important b/c many cars still use it and I won't be using it as my prime injection. Please link me if these questions have been answered. What are the cons to this little "black box"???