You work speaks for itself . Thank you for being a kind genuine person .your the best sir

That's pretty good! Credit to you for still using a phone for your videos. I went to a camera and editor on the PC early on.

Does anyone still do extrude honing? Would that clean up the runners where you can’t get to it with the grinder?

Always good stuff from you Sir!

Can you explain to me about the rear vane My thoughts were that the vane should follow your liquid flow Is this right or wrong Luv ya knowledge

Thanks Charles! For regular 289 heads, what valve sizes work best? What seat, valve face & back cut angles work best? As a hobbyist, I've only ported a few heads and recently picked up valve seat grinder. I'm going to work on some C60E heads after practicing on some junk 70s 302 heads. Besides Dykem, what other techniques can be useful for quantifying flow without a flow bench? String on a wand?

It was cool meeting you today. Wish I had known to ask you for a shirt. Cheers, buddy.

Good looking shirt you got on

There is going to be a really great Fox Mustang guy at PRI. Dan/NeoMustangs. He would be interested in chatting performance and about those GT40 heads

I would love to see a factory aluminum Chevy small block Quadrajet manifold with the Servedio treatment done to it. The only modified Qjet manifold I’ve seen is the one that David Vizard did in one of his books. He made some crazy improvements to runner flow.

What do you charge to do a set of GT-40 heads from a 94 cobra? and contact info maybe?

Did u say something or was it David found a ls6 beehive 1800 install hieght 560 lift there cheap get some hughes seats etc

How short are those short runners 😧

You hit the nail on the head that the bends in the runner kill flow. If 3 90-degree bends in a 4 inch cold air intake are enough to start killing noticeable power output on a dyno, then what are dual planes doing to air flow...

The Weiand Stealth for the 289 / 302, looks to be a modernized version of the GT40 intake. On stock stroke 302's, I always get better powder and performance from the Weiand Stealth than the Edelbrock Performer RPM. The Performer RPM always acts like it is a bit "too big" for a stock stroke 302, but it does work well. I was surprised by how the Stealth always beats it, but looks so much like an old GT40 intake. The single plane Weiand Xcelerator intake for the 302 works better than some others and seems decent for a single plane intake, but the Stealth has been the best 302 dual plane I've used and it looks a lot like the GT40 intake on the outside.

How useful would extrude porting help this intake?

A one inch open spacer will help the upper plenum make that tight corner going onto the runners. Have you tried using aluminum pipe plugs on the bottoms of the runner? Bore a hole in the probl area do the porting and then thread a pipe plug in with sealant or epoxy a round piece of bar stock into the runner to plug the holes, then you can get to thos3 tight areas use a 3/4 or 1 inch hole

🔔😎 Would a long strip of 40 or 80 grit emery cloth pulled through the runners help ? 🤔🤔🤔

3/4 radius ? Thats pretty big on a runner. YeeeHaaaaw!!!

Enjoy the show. Sure wish I could have made it. I would have loved to meet you n person and also to thank you for all of the help you have given me through your video teaching!

If someone got 300. They must have done alot of cutting and welding plus some epoxy. Thanks for the video.

I have a question that might make me look like I was paying attention 😂. So DV does notches as well but his are slightly different and I'm really interested if there is a reason why. The one DV showed a while back had the front of the notch at basically a vertical 90 and radius into the floor but the back of the notch was laid back a good 60-45°. Is there a reason why both of yours are vertical or is not that important. I doubt he'd bother if it didn't do something. Thanks for the video BTW, I really like seeing these dual planes getting worked on *Edit: I may have it backwards and the front is on an angle and the back is a 90. I keep second guessing myself

Would roughness on the inside of the turn where you cant reach help the fuel make the corner? You could cut a small peice of file and drill to holes on the ends for strings and floss it where you cant reach.

Thankful for sharing all of your efforts good and bad. Personally, you have helped my game alot. Great content, I am getting used to looking at your flow sheet data 😊. Great work as always. Thank you for sharing.

You could sawzall the tops of the long runners off, port the corners that you can reach then weld the tops back on.😊 Clean up the weld and a coarse sand blast, no one will know 😉

Ended up with 264CFM!

Might try a finer cut bur 🤷 less bounce, lots of Acculube gel or paste to stop clogging

Nice!!

Nice work Charles. Do you know what the cc's are on intake, exhaust and chambers? Thanks for sharing. Have a great day.👍🇺🇸👍

Have fun!

Cool, wish I could have made it out. My buddy is there. Maybe next year for me.

Welcome to Indiana! We put our best cold weather out for you last night!

Did u see that brother of mine out there?

Good morning Charles. Have fun at PRI! 👍🇺🇸👍

Lots of details.

Good morning Charles.

Those are some solid flow numbers .

It's never too late to make a break through. Here is MPG Mike Holler, who is no stranger to Hot Rodding and Mopars, explaining The Gagetman Groove. He consulted with Gagetman Ron, and did some flow bench work with him. He explains the effect of the Groove on performance. kzbin.info/www/bejne/fnO7ZWagZcifitE

041x is really looking great for low lift figures. For the engines I've been building I'd say they would work best with them specific combinations

Do you always raduis the top of the chamber

Charlie, what does your pro stock mentor think about the short turn breaking off at 0.7” and I’m assuming above? My thoughts are if it’s above the valve lift the combo will use then it doesn’t really matter because the airflow will never see that situation that causes it to detach from the short turn. I don’t know if that’s correct, but it makes sense to me in my head.

A fine finishing results Charles!

With these heads that 289 should scream 👍

Great job

Man Charles, those are great results and for a 1.94 intake! Nicely done!

Another good video. Do these HP heads start with larger dimensions than stock 289 heads. On the couple of those I have done, the int ssr roof height is normally around 1.25” and the int bowl width is 1.47” Are these more similar to gt40 casting dimensions because the flow numbers out of them seem similar to well ported gt40 family stuff. Thanks for sharing and teaching!

Great work, more patience than me. And that why I’m the armature.

Nice job!

Awesome job Charlie. In what situation would you do DVs mod on laying back the quench pad next to the exhaust valve. I know you don't want to lower the compression on this one. Thanks.

Type 273 cam and rockers