High or Low impedance injectors?

[87hilux7mge]

good news on the injectors then, ill use that flowmatched set of gte's. hes only put about 2k on them, and has all the paperwork from them. traded him a trick fuel rail for them so im not actually out any money.

as for the pistons, they are stock type cast, i had them teflon coated just the other day, pulled the block back apart to do it, but they all went back in just fine as well. so hopefully that will help a lil. i had it done by a buddy of mine and they all looked really good. unfortunately i didnt get any pics! fail..

i plan on building a boost ready block with forged pistons while i have the truck runnin so im not terribly worried about this lasting like 100k miles. prolly be lucky to get 5k out of it with a good tune and low boost. but as soon as the boost spec engine goes in, that boost will prolly be cranked to about 14-15 if the m90 can handle it. ill also use the time to get a transmission sourced for it cuz that w56 is gonna self destruct for sure.

out of curiosity what are the disadvantages to water/meth injection?