Quick question about MPFI upgrade

[99'Yukon]

So after a little bit of research on this topic, I think I've finally decided it's time to do the injector upgrade on my truck. I weekly come across people that to own 350 vortecs, and they have nothing but good things to say about it. So my question is, is it really worth the $270 bucks I'm thinking about dropping?

 

[SunlitComet]

Yes!

 

[99'Yukon]

Thanks Sunlit! I am pretty confident that this would be something of importance in the long run. That's mainly what I'm looking for is longevity of the truck. Are there any other plus' I might be able to look foward to by installing this unit? Any immediate changes I will notice right off the bat? Also I read through some installation instructions, and it said that its required I release the fuel pressure before removing the fuel lines from the top of the old spider assembly. Where do I release this fuel pressure from? Thanks again!

 

[SunlitComet]

new injector/regulator design for better reliability and a clean consistent spray pattern from cylinder to cylinder. to release the pressure there is a test port valve on the metal line from the injection body going to rear of engine. just depress the valve core with a rag around it to keep it from spraying. it may only last a second anyways. it is similar to a tire valve core.

 

[99'Yukon]

seems simple enough. thanks again sunlit!