HOLLEY SNIPER FUEL INJECTION ~or~ CARBURETOR???

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I purchased the Edelbrock ProFlow 4 for my stroker build.
Not installed yet though......
But I'm reading everything I can on EFI.....good tips here.

Take-aways I see so far:
Exhaust and sensors gotta be sealed up perfect
Use GOOD sensors
Gonna need a lot of electricity
Excellent wiring and grounds
Follow instructions EXACTLY

Still reading, still learning.

Jeff
 
I purchased the Edelbrock ProFlow 4 for my stroker build.
Not installed yet though......
But I'm reading everything I can on EFI.....good tips here.

Take-aways I see so far:
Exhaust and sensors gotta be sealed up perfect
Use GOOD sensors
Gonna need a lot of electricity
Excellent wiring and grounds
Follow instructions EXACTLY

Still reading, still learning.

Jeff

And you forgot the main thing- regardless of your religion- Pray! Pray and more prayer.
Having the Holy Spirit on your side is a huge help when building aftermarket fuel injection.
 
These are all very helpful and I appreciate all comments.
Let me ask, my kit says unleaded fuel only, but I’m up in between 10 & 10.5 compression and a .567 lift roller cam, 93 octane just might not be enough so now what?? No race gas or av-gas?? Is this motor too much for what Holley offers currently??
 
These are all very helpful and I appreciate all comments.
Let me ask, my kit says unleaded fuel only, but I’m up in between 10 & 10.5 compression and a .567 lift roller cam, 93 octane just might not be enough so now what?? No race gas or av-gas?? Is this motor too much for what Holley offers currently??
A lot of other fuels outside the pump is unleaded. The VP I buy in 5 gal cans for small engines on my farm is all ethanol free and unleaded. Not too sure if leaded fuel is even still available even in small batches. Lead help lubricate old school engines but not needed with hardened valve seats.
 
I went as far as ordering a Sniper unit on a weekend, and cancelling the order on Monday. My car is running so well with a $400 carb, why spend $2000 on an FI unit. Plus, I wish I had a dollar for all the posts here and other places where people were having lots of problems.
 
I put 800 plus miles on my 67 GTS 499" stroker with Sniper without the first hiccup. It can sit 2 months and I can reach in window and crank without touching the gas pedal and keeps running. I also have Fitech on smallblock but the Sniper has been better. I drove it to Cruizin the Coast in traffic and never vapor locked in traffic. I would do it again, Joe
 
A lot of other fuels outside the pump is unleaded. The VP I buy in 5 gal cans for small engines on my farm is all ethanol free and unleaded. Not too sure if leaded fuel is even still available even in small batches. Lead help lubricate old school engines but not needed with hardened valve seats.
Airports, 100LL, low lead
 
Not sure why people think that EFI will leave you stranded any more than a carburetor would. My only guess is that there is a mistrust/misunderstanding of electronics.

I have a Sniper on my ‘68 Coronet. Yes, I’ve been stranded once but it was not the fault of the unit. I re-did the wiring harness and the main ground wire pulled out of the back of the connector due to a bad crimp on my part. Car was running fine before that and ran the same after the wire was fixed.

There is also a misconception that it’s all plug and play and the engine will run like a modern car. It’s true to some extent if you are OK with baseline performance but it really shines when you take the time to learn the software and build your own tune.

You also see a lot of guys try to get a Sniper to run with a mish mosh of parts. They either cheap out or think they don’t need it but they skip getting the distributor and ignition box. It can be done but why knowingly choose to fight an uphill battle? There’s almost no point in doing it that way since the ECU has the ability to control timing which really enhances drivability. Why buy a fancy new device and then lobotomize it?

One major drawback could be that it is expensive to buy the entire system from stem to stern including the in-tank fuel pump. It’s also a lot of work. I can see how many might not think it’s worth the and effort if their car runs well.

Sniper won’t make more power but it will smooth things out and run cleaner. It also prolongs engine life by not dumping a ton of fuel into the cylinders during start up.

It’s not for everyone. If you enjoy trying new stuff and the tuning process and don’t mind dealing with software then it’s a no brainer, go for it. If you don’t want to get involved with software or take the time to get the system optimized then stay with a carb.
 
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