Problems With Speed Density Help

[chriswhtmr]

I Have A 87 Gt Speed Density, With The Following Mods
E303 Cam
Typhoon Efi Intake
70 Mm T. Body & Egr
24lb Injectors
Underdrive Pullies
Ported Stock Heads
Short Block Is 30 Over Also
The Car Ran Like A Rapped Ape, But Black Smoked Crazy, Fouled All The PLugs Then Died. Removed The Injectors, Installed The 19lbers And Then The Dang Thing Idles At 2000rpm, And Strugles Underload, Throttle Is Really Delayed, You Hear The Throttle Body Suck Before The Engine Revs. This Want The Problem When The Bigger Injectors Were In. It Had Very Quick Throttle Response, Reved Really Good ????? I Need Help So Through Something At Me ,,, Mayby Need To Switch To Mass Air???