ok .......
i know some of you have done some great work with our little 1NZFE.
so for you i have some questions.

if i did a port & polished head with cams, matched intake and header
would i need to do anything with the fuel system?
what about an engine management system, would i need one?

i can get a complete upper end set up for $1800
http://www.fastscions.com/Scion-xB-E...Internals.aspx
and if ive already got the moter open i might as well do forged pistons and rods, that would be another $1200.

if i need an AFC or a stand alone id rather know befor i drop the cash and tear the engine apart because if i do just the upper and lower then find out i need injecters and an AFC ill have to wait another few months of saving cash.
my cars not a daily driver, but i don't want it parked for a few months eather

 

You'd probably want to do some sort of piggyback to adjust the fuel... not sure if you'd need larger injectors at that point either.

 

i know for sure that if larger injecters are installed one would need some sort of fuel managment.

i don't want to do injecters if i don't have to

 

you could always find some tc injectors, those work dont they..

 

yes the TC injecters work, but once again you would have to use a fuel managment system