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.

 

If you want to run very rich and get bad gas mileage for a year and a half, get those 24# injectors.

I'd suggest you buy some used 19# injectors while you wait and just send them in to http://www.cruzinperformance.com/fuelinj.html , or just send yours in and buy injectors next year.