hello everyone i came to this site looking for some info hoping i found the right place. So now heres what i need i have been looking to upgrade my cam to the 49-410-8 comp cam and when i talked to some from summit racing they was telling me to run this cam i would have to do the following change injectors, custom made pushrods ,valve springs ,profesionally tuned and chip burned for my computer so is this for real or are they trying to sell me more than i need

 

http://www.moranav6racing.com/catego...?CategoryID=32 go here before summit for performance 4.0 parts