SNIPER Hyperspark distributors do not generate a cam signal because TBI doesn't need it. So you still need the dual-sync distributors for the HP and Dominator.

Yes, you would need a dual sync distributor for sequential. Batch fire might work with the Sniper distributor but I don't think I need to try that combination.

I just ordered the Sniper distributor so I should have it in a few days. I think it is smaller than the dual sync so it should fit and work with most valve covers. I'll post pictures when it shows up.

Stupid question, do you still need the cd box with the sniper efi?

You can run it old school with a points distributor and a coil if you want but I think most people would want to use a CD box.

I have an old Crane CD box in my car but I'm switching to the new Holley Hyperspark CD box.

Rich I have been waiting for the dual sniper system to be available to install on my 426 hemi. It has a Stage V manifold. Is the equalization port enough of an opening to balance the throttle plates?

I'm lucky enough to know and live within an hour of Matt Bell of redline motor sports to help set the tune.

Thanks Mike

The Sniper will work fine with the Stage-V manifold.

A dual Sniper would be a trick to do since the ECU is in the throttle body and the cables are hard wired. I have no idea if Holley is going to ship a dual Sniper or not. I think you can do dual Terminators with some home brew engineering. Dual throttle bodies with port injection should be easy but expensive. The Stage V can be ordered with port injection or it might be better to use the Edelbrock EFI intake.

I wasn't sure if when they say, these set ups can also control
Ignition, if that eliminated the need to run an Ignition box

No. It allows control of ignition timing but a CD box and coil are still required.

Did Holley make a new dual sync distributor that fits better than the previous dual sync for BBM? I'm thinking I could clean up the wiring even further with this Holley ignition Hyper Spark setup juxtaposed to my MSD CD box and coil.

The new Hyperspark distributor from Holley is smaller than the dual sync so it fits better. It fits the Trick Flow heads without grinding and it fits cast iron heads if the casting flash is removed. It rubs on Edelbrock RPM heads so some minor grinding is required if you have RPM heads.

I ran the Super Sniper on my 470 with the Trick Flow 270 heads. That engine made 730 hp with my Dominator and then 710 with the Sniper. I had to use a 4500 to 4150 adapter which kills some power. The Sniper is a tad small for this engine which also kills some power but 710 isn't bad for a low cost throttle body system.

The Super Sniper is rated at 650 hp but there is some margin in that number. My engine was using 85% duty cycle on the injectors at 7000 rpm so there was still a bit left. The airflow was about maxed out though based on the pressure drop across the throttle. The Sniper has a nice data logger so after a dyno run you can just play it all back and look at the manifold pressure, fuel pressure, fuel flow, air fuel ratio, etc. and see what the engine was doing.

Here is a picture of the Sniper on the dyno. I'll get a video posted up later on tonight and maybe a screen shot of the data log.

Thanks for the info.I know it's your money spent but, do you think the dominator Sniper would make more on this engine ?

The Sniper 4500 is for engines making over 800 hp. One of those would work on this engine on the dyno but it might not drive very nice. It might not even idle since it has twice the injector area that this engine needs.

The perfect throttle body for this engine would be a Sniper 4500 with eight 60 lb injectors. That would give me the larger throttle body but the injectors would be the correct size for the engine. At the moment Holley doesn't offer a "build it yourself" Sniper setup. Maybe they will in the future.

Here is the Hyperspark ignition kit with the new Mopar distributor. Nice looking distributor, has the new black cap from MSD. The ignition box is a nice shape, has a little bit of curve to it rather than the boxy MSD design.

Ask Rich about it, if it was port injection those large injectors would be a problem, I dont think it would be a problem on a TBI, Fast & Fitech have them & they work on lower HP engines.

In theory a throttle body setup could shut off some of the injectors to avoid the low duty cycle issue but I don't think Holley has that feature in the Sniper line. The Sniper 4500 throttle body is advertised as "not for engines making less than 800 hp". So if they could shut off the injectors at low speed they wouldn't need to advertise it that way.

I do agree, if the software was smart enough to disable half of the injectors at idle then the Sniper 4500 would work on this engine and would most likely make more power.

8 EGT's would also work and are a lot easier to install....Tim

Here is a link to the start up video: https://youtu.be/cGljNs28Yp8