i am looking in the 750cc to 850cc range i got my eye on these http://www.fiveomotorsport.com/ev14-750cc-fuel-injectors-import-fit but i have no idea if there fit they just say toyota Edit: had a blonde moment there definitely not gonna fit the stock fuel rail. there top feed not side :banghead mmm these should hopefully fit http://www.fiveomotorsport.com/750cc-jecs-side-feed-fuel-injectors
What boost is that for? Be wary that running rich may prevent detonation but causes "cyl wash", ie all the oil is washed from the cyl walls and the pistons seize up. Another alternative is an adjustable FPR which if used correctly can do the same job
mods on top of that would be a gt30 turbo running around 15psi. i have a standalone ecu so with proper tuning its not gonna be a problem
Ditch the side feed. An st165 rail with bolt to a 2nd Gen head with almost no mods. Much larger selection of injectors available for top feed.