well in the class that i am in in auto x (STS) you are allowed to swap parts from any car to any other car as long as they are on the same line (meaning that when prepared equally they end up in the same street prepared class) so it would only make sense to take advantage of the rules and get the most power by either swapping in a GSR motor or building lsvtec by using only GSR parts (aftermarket parts would put me in street mod, which is a class i cannot yet afford to be competitive in) so im wondering if you can effectively build a decent ls vtec using only GSR parts or if it wouldnt be worth the time/effort and to just save the money and swap in a GSR motor.