96 on 35's lacks power.. need help

So I swapped my factory computer back in last night and went for a drive. I did not realize how much difference tune made.

beardeddummy said:

So I swapped my factory computer back in last night and went for a drive. I did not realize how much difference tune made.

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It is pretty amazing. Did swapping the stocker back in fix your misfire issue, though?

No and the only thing not new on the top end is the intake manifold could a timing chain being worn cause this? short block is all original

Honestly I have no idea, sorry. Someone else can surely answer that one though.

Every time I think misfire issues my mind goes straight to weird little stuff, like ignition issues or even a clogged fuel filter. Sounds like you've ruled that stuff out, though.

Yea fuel pump has less than 10k on it, I do a fuel filter every other oil change

Just realized hijacked your thread I'm sorry

Yeah, my apologies as well. Just remembered you mentioning that and wanted to see if you'd made any progress.

I would do at the least longtube headers full exhaust, tune, and at least a 4.10 gear swap and limited slip/posi not of the g80 variety

df2x4 said:

If you'd read the past few posts, you'd see that I acknowledged this. If you're including this in the "big three for these trucks," which by the way is something you made up entirely, then I'd say you're the one who's full of it. The improvements for that mod are so negligible it's not worth doing at all. I know, I've done it.

Feel free to keep recommending it. I'll keep telling people not to waste their time and energy.

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You sound like one of those guys who think there's nothing wrong with GMT400 brakes too. I made up the big 3 just like the other guy who did it for electrical, big deal. I'll blow it up to the big 4 now, the 4 most impactful mods I did for power. 1: tune. 2: gears. 3 & 4: up in the air between exhaust and the TB lip removal. I admit it won't do much for a 5 speed, kinda forgot about that, but for an automatic it makes a very noticeable difference in OD holding ability. I'll also admit it does nothing for WOT operation, that's not why I deleted that lip. It also made throttle response night and day better. If you think it feels like an on/off switch, learn to feather the gas. I don't like a truck that downshifts for every little thing. Obviously you do, keep your throttle blade stock then but quit spreading misinformation.

Supercharged111 said:

You sound like one of those guys who think there's nothing wrong with GMT400 brakes too

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Yup.

Supercharged111 said:

but for an automatic it makes a very noticeable difference in OD holding ability.

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Sure it makes a difference, "very noticeable" is the part I'm arguing here.

Supercharged111 said:

I don't like a truck that downshifts for every little thing.

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I don't either, that's why I recommend a tune. I find it funny that you assume I don't know how to "feather" a gas pedal. I just prefer a linear throttle response, especially in a daily driver.

Supercharged111 said:

keep your throttle blade stock then but quit spreading misinformation.

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If anyone's doing that, it's you. Removing the TB diffuser is not God's gift to overdrive. It will help marginally, but at the expense of the linear response I mentioned.