dimebag

first... if your speed density, 300 is pushing it, because thats all 19 lb injectors can handle, well a little less

imo shoot for about 270 n/a... and spray it with a WET shot, not dry.

as for heads... depends on budget... gt40s are cheap and work. afr/tfs/edelbrock are all more money, but good heads

as for a cam you have about 4-5 choices, some take more to get to work then others. i have the xe270(comp), its a very nice cam for SD but its right on the edge as far as what works and what doesnt... and even so i had to do some things, valve train related, to make it work like i wanted it to.

now, if this is a track only, or very rarely street driven car... we can get you to the 350 range,but i dont advise doing what it takes to do that on a DD or even something you drive on the street much at all

jayh88gt

sd cars dont even have CEL

the egr only operates at part throttle

check firing order, prolly have nonHO motor

next compression test,then running compression test

jayh88gt

300rwhp- good heads and intake, maybe cam, 10.5:1 compression, longtubes

yeah you'll need 24's, sd will work w/24's no problem, might even need to bump fuel psi a tad