I have a k&n cai, slp ud pulley, shorty headers(i live in CA), msd wires, airaid spacer and a tune in my 5.3 with 3.73s
corvette servo and shift kit coming soon.
so what could or should be my next mod?
maybe P&P TB?
any ideas?

 

Cam, stall, and unless you like the sound, ditch the TB spacer.

 

cam and stall are definately whats going to make a noticeable difference. as far as little things. i think you've got it covered. long tubes would help you out but i guess the cali thing is why you chose the shortys

 

cam cam cam cam cam cam cam cam

 

Cam, long tubes, dyno tune, and converter. I live in cali also, planning on swapping back to my stock manifolds and y-pipe before smog time.

 

Im thinking i might do long tubes and switch back whenever i have to do smog
Also thinking about a cam
dont really know alot about cams though
any recommendations?
Would i need new pushrods and springs?

 

pushrods, springs, ls2 lifters, and a non dod valley pan. The DOD lifters are only good to like a .550 lift. There are several threads on doing a nnbs cam swap. NNBS cam is a single bolt cam as where the older style cam is a 3 bolt. So other parts will have to bought.

 

def a Cam/stall combo . . . if u get want 2 get ur heads ported/while ur swapping out DOD lifters , your going 2 noticed a big difference also ..

 

sounds like a lot of work and money
but i bet the cam would make a difference
getting the heads ported sounds like a good idea
maybe get the tb ported too

 

Been looking around for longtubes but im undecided
what brand of longtube headers and y pipe would you guys recommend?
LPPs, pacesetter, ????
Part numbers would be greatly appreciated