If I were to buy a 331/347 Kit, what do you guys think is better, the CHP kit, the DSS kit, or should I just build my own? I only ask this because I have a friend who had a VERY bad experience with CHP, and i've heard of a few ppl unhappy with DSS. Is it worth it to build my own stroker kit, or do most ppl have a good experience with the previously mentioned companies?