Looking to maybe upgrade to gtx28's but I'm wondering if I should go 740s or even ID1k's. It will be ran on pump so I'm assuming I would be in the 550wrhp-ish range on a 17-18 psi tune? I know that will be getting to the limits of my 615s (if not over). For those with 615's, what did you max out at?
Follow Ups
Max output for 615cc injectors? - Stanky19:46:27 10/03/14