21.5’s or 24’s for riot racing regrinds?

[Rugbyfan]

Both the tuner I’m using and Riot Racing say 21.5lb injectors are adequate for a full bolt on s52 with street cams. Anyone ever have an issue with 21.5’s not being adequate? What whp can 21.5’s support?

[wworm]

this is kind of vague, but my research tells me that once you get into more aggressive cams/bigger tb/rough low end/phenomenal top end is when you'll need to get bigger injectors. Anything labeled as "streetable" implies a pretty smooth low end so basically beyond that will require more fueling.

[Rugbyfan]

I’ll be sticking with my 21.5’s. Thanks for the input