Right now I have a 305 tpi , saving up for a 350. Figure swap for a 350 in about a year and a half. If I'm replacing the fuel injectors now which # rating should I get, 24#? Keeping the future engine swap in mind. Thanks for the help.

 

24# is going to be a bit much for stock 305. You would have to greatly decrease your fuel pressure so it doesn't run too rich, and you're going to kill performance.