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10sec.et · Posted: Fri Apr 22, 2011 1:18 am Post subject:

theres more to porting than size. just making the ports bigger doesnt necessarily improve flow. unfortunately, i have no specific experience with the heads you have so i cant really offer much help on porting. best thing (IMO) for you to do is research what has been done to your heads with success and attempt to duplicate the port work.

Skunkworkx · Posted: Fri Apr 22, 2011 7:17 pm Post subject:

Those are some nice numbers Paul.

af2 · Posted: Fri Apr 22, 2011 8:24 pm Post subject:

Here is a web site you guys need to bookmark.

http://users.erols.com/srweiss/tablehdc.htm

Most of the flow#s are from excellent porters.

The heads you have are a S/R= stock replacement and are fine for a bone stock 350 that see's south of 4500 most the time.

I will post in a while what I think your combo needs after looking at the cam specs.
You do realize that is backwards from what should be done? Wink

af2 · Posted: Fri Apr 22, 2011 9:30 pm Post subject:

Do you guys want to see how stupid it gets flow wise????
I want to see the velocitity probe #'s!!! Laughing

http://speedtalk.com/forum/viewtopic.php?f=1&t=25623&start=90

Had to edit because of spelling!!!!!!!! Laughing

af2 · Posted: Fri Apr 22, 2011 9:35 pm Post subject: Re: 406

Skunkworkx · Posted: Fri Apr 22, 2011 10:28 pm Post subject:

286ah-8 236/244.523/518 108° hydraulic

This is what I went off of.

af2 · Posted: Fri Apr 22, 2011 11:32 pm Post subject:

af2 · Posted: Sat Apr 23, 2011 12:00 am Post subject:

FN glasses on guys!!!!!
The 296 is at 246/253@ .050!!! For a flat Hydro that is way more than a bunch!!! They say 3000-6800 and that will never happen unless you are revving in neutral.

I will tell you on the 2 motors I buildt( spelling) Laughing

the Hydro is a lazy a$$ cam!

I would take a solid any day for the fact of the quick ramps and the extended rpm.

Before I even say the heads I would run I would like to see that cam back in Comps storage! Wink

af2 · Posted: Sat Apr 23, 2011 12:19 am Post subject:

I forgot to say I ran a guy that had a Chevelle with a Crower Hydro that he said was a 8000 rpm 360" engine and laughed to the bank after running him with my .030/.030 cammed 327 in my 2900 lb Vega. I shifted at 7800 with good springs.

af2 · Posted: Sat Apr 23, 2011 12:24 am Post subject:

Sorry. I am on a roll!!!
Converter is getting sent!!! Shocked

novaguy71 · Posted: Sun May 08, 2011 4:29 pm Post subject:

I had a comp 300b-6 in it before this cam and I ended up swipping few lobes on it. I called comp cams and they said id make the most power with the 296h with the setup I have... does this cam not make sence to u??? I'm still learning on the performace end of engines

Paul P · Posted: Mon May 09, 2011 1:04 pm Post subject:

Other than more head flow, Compression and Cam. A N20 kit will get you there. Not much else to say.

Big Dave · Posted: Tue May 10, 2011 9:18 pm Post subject:

Paul P · Posted: Wed May 11, 2011 10:47 pm Post subject:

I'm putting the valve open a bit more than .400 lift Twisted Evil

but yes in fact these with a street cam would make really good power too.

They did flow 284 on the exhaust with a tube.....

With this kind of area under the curve a race motor will breath very well also. I'll be shooting for low 10's

Pro Fleetline · Member Joined: 04 Jun 2011 Posts: 20 877.68 points

Pro filers are awesome heads running a set of Chad Speiers 210
Pro-filers wow amazing lil head on my 406.
Heres my flow chart could have had them open up more and still can but i had them done to match my current engine combo! car has some Assss. amazing head

By profleetline at 2010-11-25