i was lookin at a cheap easy way to get some power out of my engine. i already have headers, dual exhaust, mallory ingtion and a K&N airfilter i was lookng at gettin performance cam and lifters for my small block 350. i was just wondering if there is any major down sides that i should know. this is what i was thinking of gettin! http://store.summitracing.com/partdetail.asp?part=SUM%2DK1108&autoview=sku if i got that, that would be all i need for it right? plz let me know.