Re: Timing control yes/no ??
If the ECU you are using with your EFI can't control timing I would highly recommend MSD's Grid. I ran one before I decided to go EFI. The ECU i went with is the Holley Dominator so I no longer needed the Grid. The Grid worked great and was able to record data which was great for the track.
'69 Camaro - 429 SBC Dart Iron Eagle 9.325" block, Crower crank, Crower 6" billet rods, Ross pistons (10:1), Total Seal rings, AFR 245 heads, T&D steel body shaft rockers, Cloyes Timing set, custom ground 4-7 swap solid roller 274/286 @ .050" with .704" lift, Dart single plane, Holley Dominator EFI on E85, Injector Dynamics ID2000 Injectors, Stef's #1705R oil pan, F2 Procharger, Lemons 2" primary 4" collector, ATI 9" blower converter