hey shirl don't be too shy about the dellortos they are a great way to go, as far as a dyno tune up goes, not needed, as long as you can find someone to tune them for you like an old mechanic you shouldn't have any problems. I'm getting a mate to tune mine for me, he's tuning them to each cylinder seperately.

my only concern is that i've read somewhere that i may need a bigger fuel pump, i'm pretty sure i have the stock A15 fuel pump on my A15.
cheers ty