i need some advice

[JEzze]

OK my mods are listed below. My question is I am understanding that with the sc pulley smaller the better with supporting mods. With what I have what's the best pulley. I have 3.4 3.5.
I'm getting a plog really quick but for now I understand I can get more power with the bigger pulley. Can someone please explain. Thanks in advance.....

[yourgrandma]

Looks like youre in 3.6-3.5" territory with stock timing. If youre running KR free, tuning in more timing and better fueling would theoretically be more beneficial than adding boost.

[JEzze]

So more fuel and timing is the trick.. I see I have speed daddy's. I have found some decent headers on eBay was wondering if it's really worth the extra hundo far headrs over plog. I also I'm getting 3* kr with 3.4, I was going to just do plog until I checked eBay headders...

[yourgrandma]

Headers are definately the way to go.

There are differing opinions about timing vs boost, my view is that more timing is safer and more efficient.

[wake]

there are differing opinions about timing vs boost, my view is that more timing is safer and more efficient.

i agree

OP, IMO id put your headers on first, check for KR and if you have none then drop to a 3.5 pulley

3* of KR with a 3.4 pulley isnt bad but it isnt good either, ill let a gearhead explain more in detail about that!

[JEzze]

Any gear head interested in lighting me on the best all around move . I have searched an searched here an GM forum there seams to be a lot of discussion. With my location and weather I just want of course the best set up and safe .

[BonneMe]

Headers definitely are better. They have better scavenging effects AND higher flow. PEM/PLog just have higher flow, still hurt the car in the upper powerband, and need a downpipe anyways to be best effective. Why not buy headers with a downpipe and be ahead...

[JEzze]

Thanks for advice. I do have a hogan dp. If I was to get plog do I need to get crossover as well

[yourgrandma]

Get the headers, keep scanning. If I had it to do again, id probably have wrapped my headers. It does shorten their lifespan a bit, but for the price of ceramic coated togs or slps, I could rot out 3 or 4 sets of speed daddy's.

As for the pulley, on my setup, even with a big honking intercooler, I plan to keep my 3.4" and go for 18+ degrees of advance at WOT. Idea being that it will allow the pcm to pull that ecra timing if theres a problem. It also puts less paracitic drag on the engine and heats my charge air less.

[JEzze]

That's interesting. So as far as the timing go how to I now what is normaland if I'm getting timing advance. It seams like the timing is all over the place. Starting at 0 when I start it and it walks it way up to hi 30 . So the higher the numeric for timing the better

EDIT * WHERE'S THE BEST PLACE TO GET THE SPEED DADDYS

[00Beast]

You want to know the timing at Wide Open Throttle (WOT). That's really all that matters for you.

[JEzze]

On my way home i will check timing at wot...