do you mean 215 injectors as in the injectors they use on a 215hp p pump engine? if thats what you mean you cant do it. the p pump injectors use different threads on the lines and the pop pressures are diffeent

 

you can put the 215 tips on your injector bodies.

the P-pumped injectors open at a higher pop pressure and will pretty much kill your pump trying to open them.. aside from running horribly...

if you have the set just laying around, swap tips.

 

alright. this truck runs and pulls good enuff now. thanks for the help guys.