No need I'm a Google guy... didn't know Tony had that many...

 

Here's something most have seen but never compared...small difference...
https://www.powernationtv.com/episod...0/copo-a-go-go

http://samtech.edu/stock-eliminator-ls7/

 

There are multiple reasons I picked a 258 intake lobe for my ls7

Seems like a magic number for a 427.

They’re making 800+ the hard way - fitting class rules.

Open things up and there’s power to be gained easier like vacuum pump, bigger head volume, unrestricted lift, unrestricted intake and head porting etc etc

 

I noticed that too. Most of the 700 rwhp motors NA seem to be 258 to 264 intake duration. Almost regardless of displacement. 427-454

 

Yeah what I calculate is not coming up to the 2.8 I keep hearing.

 

Yes make it 20 darth, Na record on MPW's dyno

 

Looking over that list of cars im not mad at all about this at 3900lbs race weight and ported 823 castings

 

Aint Skeered~ what tranmission?

 

4l80 with rmvb and transbrake. 8" fti converter

 

Yet another thread ruined by one or two people.

Thanks LS1tech!

 

so what part ruined this thread?

 

Your car just needs Jenny Craig for nines

 

Are these hydraulic, solid or both?

 

I'm trying on both the car and my self.

 

I like jenny craig 😁

 

I'll be .taking some out of it soon.

 

Similar combo to mine.
Pretty impressive time.
And that's just factory heads with a port job.
Damn.

 

I don't think the thread is ruined.

 

and they are not hogged out heads either

 

Good flow numbers.
What cc are your intake runners?
That test is on a 4.080 bore too.
Smaller bore will have less flow.