ok here is another question my brother has a 306 with twisted wedge street heads, cobra upper and lower, trick flow stage 1 (499 510) cam and other basic blot-ons. the car made 305 hp and 320 tq at the wheels. he wants to go with a Super charger. he is going to do alot of street driving with the car and ocasonally hit the track now i told him to go with kenne bell but he thinks a pro charger is better what do you guys think ???