Please Help!!! Need to know what size injectors to use...
 

I have an 88 Mustang GT that I am putting a 351W in it. It has Ported Edelbrock Performer RPM heads, comp cam, Crane Gold Rocker Arms, Ported Trick Flow Track R Intake, Complete Aeromotive Fuel kit and tank. Compression is low something like 8.5. Without a supercharger what injectors should I use???

How much horsepower would you estimate I could get out of that combination??