I have a '02 RC/SB with a 5.3. I was going to install a LS6 cam, lifters, springs, P&P heads and a intake. Which of these will work for the most noticeable power gains. I plan to get an edit tune right after but I dont know where to go. If I go with the LS6 intake what kinds of modifications will i have to make so it will work? Will I have to change injectors, fuel pump or anything else? Sorry for all the questions but i want to get this right the first time so I wont have to take apart the engine again.

 

Don't bother with the intake swap. It's not worth all it takes do get it done. An injector upgrade wouldn't hurt, but is probably not needed.

 

i think that the cam and the tune would get you running the best. i bet you will see like 35rwhp out of the whole bit.

 

if your considering price I dont think they can be beat I havent had the long tubes to compare but on a stock to medium cam I think they are matched well, if your going with a more aggressive top end cam Id go for full lenth headers.