Just ordered my Holley Sniper EFI....

[dan42]

I have the FiTech on mine- had some initial problems with the fuel pump but have an in-tank pump now, and it runs beautifully, no pump noise, and looks old school. Very happy I did it.
Posted via Mobile Device

[joeydurango]

This may be the wrong question, but if I were to install one of these systems, gas mileage would certainly be one reason for it. I LS-swapped my first K10 (5.7/4L60E) and it got about 18-19 mpg. My current K10 with a 350/350 gets 10mpg. So, what kind of mileage are you guys seeing with either the Fi-tech or the Sniper?

Additionally, are you getting more power, and by roughly what percentage if so? I figure you gotta be, but don't know for sure. No way people are installing these just for ease of starting.

Thanks! And I agree with one of the previous posters, we need some photos on this thread!

[Rufas]

Originally Posted by joeydurango

This may be the wrong question, but if I were to install one of these systems, gas mileage would certainly be one reason for it. I LS-swapped my first K10 (5.7/4L60E) and it got about 18-19 mpg. My current K10 with a 350/350 gets 10mpg. So, what kind of mileage are you guys seeing with either the Fi-tech or the Sniper?

Additionally, are you getting more power, and by roughly what percentage if so? I figure you gotta be, but don't know for sure. No way people are installing these just for ease of starting.

Thanks! And I agree with one of the previous posters, we need some photos on this thread!

Can't say about a 350, but the FiTech really woke up my 468 BBC in my 67 Cutlass. Can't say a per percentage since I've not had it dyno'd since the install. Before FiTech it dyno'd at 518hp and 585 torque. But it sure has a better kick in the pants than it did before. Did it improve my mileage? A big NOPE!

[joeydurango]

Originally Posted by Rufas

Did it improve my mileage? A big NOPE!

Something tells me that might have to do with your usage of that extra power...

Thanks for the reply!

[Lancialonnie]

I decided to go with the FITECH system for a couple of reasons. First the cost and second my local performance shop had now down over a dozen FITECH conversions and has established a working relationship with the company. I was going to do the install myself but was concerned about dropping the rear tank myself since i decided to go with the reyrofit in tank fuel pump. I know it will run better than the carb but I'm really hoping to improve on the 6 mpg that this old 307 is getting! I'll post my results.

[TXgearhead67]

Im in for info also. I plan on going FI with my build too. Looking at Sniper because of Holley background. I have a question to you guys already running FI. How bad does the cam size affect the system? Meaning I would to love to use a mutha thumper cam but I believe it’s to much overlap which doesn’t have enough vacuum for FI. Any experience would be great.

[Ekliptix]

I got the sniper master kit, just waiting to install it. Going on a 402 with alum heads and cam. I'll start an install thread when productivity kicks off.