alright a friend of mine suggested that i should put a set of 60-1's or t04b's on my rew'd 1st gen rx7 project car, but im just iffy because i have no idea how it would work performance wise like what kinda power band/range am i lookin at if i go with that setup also what would i have to upgrade other than the fuel pump etc

 

if your gonna run upgraded twins, look into bnr super cars stage 3 upgrade. they are a great price for what you get. Most of the other "twin" single turbo conversions have shown to not really have any benifits. They have the same spool up time as most single turbos, and there power capability isnt any greater. I would just suggest pick a good single turbo conversion that matches your likings.