spider system which one should i get

[silverado98]

there 2 spider systems i can purchase there is one from autozone or the one from rockauto which is ac delco brand but the autozone one is 3yr warranty. i have 5.0 vortec trying to see which is better and the ac delco one like 60 bucks more which is from rockauto.com

 

[83GMCK2500]

I've installed a few and have only used the AC Delco kits, had zero problems. Cheapest I see is on ebay right now: HERE

 

[Jrgunn5150]

I used Delphi, from Amazon, it had the bright green caps and came with the bracket. I don't own that truck anymore, but it fit weel and worked correctly for the five months or so I had it.

 

[grampadirt]

I used the Delphi as well.Installed it five years ago in wifey's burb,still working as it should.

 

[SAATR]

Easier to warranty the AZ unit if it takes a dump, but the ACD should be good quality. Your call.

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[silverado98]

so just did the replacement on the spider got from autozone and it feels way better but still a slight misfire but only under load like it spudders and slight misfire at idle I did everything I can think of the only other thing may be the fuel pump is let enough pressure not sure clueless help give me some ideas

 

[Jrgunn5150]

Have you checked the pressure?

 

[silverado98]

I did but I can't remember what it was I don't think it was right though just dont remember what exactly what psi it was

 

[SAATR]

I did but I can't remember what it was I don't think it was right though just dont remember what exactly what psi it was

It is critical that the pressure is where it should be. Ignition issues and compression are two other potential culprits.

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[silverado98]

It is critical that the pressure is where it should be. Ignition issues and compression are two other potential culprits.

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the pressure for fuel pump was running 42-45psi going up and down between those numbers