umm, best guess from what i am lookin at, if it is indeed an LT4 intake, its LT4 heads aswell, and he would have been dumb to not do a cam at the same time. i also see 30lb/hr injectors, so im guessing its a 360rwhp range car, if he went with a small cam and they are stock lt4 heads, but im guessing he got a pretty decent cam since it looks like he rerouted the brake booster vacuum lines, possibly an electronic booster?..get the bottle, and then run him.

hard to exactly tell, but also looks like he has a nitrous throttle plate aswell. 2nd pic is too small to make out where exactly the line is running.