I am restoring a 79 el Camino and after a long story I ended up with a LT1 out of a 93 Camaro that I’m going to drop in. I have a twin turbo kit I’m putting on it since I have everything apart I feel like now is a good time to do some work on the top end. All the research I’ve done I found upgraded intakes are basically non excitant and most the mild cams suggest next valve springs. I’m fine with putting some money into the top end but I am wondering if anyone has done any upgrades on a twin turbo LT1? Any help or suggestions would be great.