Tibbs

Guys, building a 383, cam specs are: Bullet cam, .588 lift intake/exh, dur 227/232 @.050, LSA 111, will be 1.075 smaller base circle for clearance on 5.7 rods. Have AFR 195 Eliminator straight plug heads. I need a recommendation for an intake..looks like I will have clearance issues with the stock hood on my 79..suggestions? Plan on running a Holley 670 cfm.

gkull

When you look at manifolds for your heads they have to nearly match in size. So look at your head port size and then the manifold port sizes. Generally there are NO dual planes with large exit port sizes.

My 383 motor has a team G single plane and a 1/2 inch 4 hole wood spacer and a dropped base K&N with a 2 X14 with filter lid

Tibbs

gkull..so your set up fits under the stock hood?

gkull

Yes, I had a stock hood with many motor combinations. Is your cam a H-roller

resdoggie

I run a Team G on my 355 with a retro HR .560" lift I/E and same duration as yours. Also a 650 Holley Street HP carb with a 14"x4" air cleaner on a 1-3/4" drop base filter under a stock hood. Car runs fine with the single plane and I'm willing to bet as good as or better than the ever popular RPM air gap. I doubt you will go wrong with the Team G for the street or track.

CheezMoe

I am running a Dart dual plane airgap style intake on my 383 with a holley 750DP and LT-1 Air Cleaner w 3" element and it all fits just fine in the 73. ...and beautiful smooth cruise and throttle response!

63mako

I thought you were going with this? Howards retro roller 110885-08 278/278 dur; .525/.525 lift; 108 LSA If you want more lift 1.6 rockers will get you what you need.

Tibbs

yes sir

Tibbs

I was told that I needed a small base circle camshaft and that that Howards was not small base circle, so I consulted w/Mark from Bullet cams at the recommendation of my short block builder. BTW, I will install the Comp Ultra Rockers you recommended but will be 1.6 ratio..thanks for your recommendations and expertise

MotorHead

You can't beat the RPM Air Gap for a dual plane IMHO

molsen

My 383 was built for the drag strip years ago. Last year, I swapped out my sr for hr. Howard's cams(normal size) .560 lift, with 1.6 rockers. The hood has been for clearance. Running rpm air-gap at the moment.

bluedawg

I also like the team g.

bluedawg

I also like the team g and it comes in 3 different heights, the lowest I believe would work with a stock hood.

fishslayer143

RPM Airgap on mine... 525HP....383 cu in

Jebbysan

I also run the 7530 Team G that is well massaged.....I recommend you do this or have it done.....
I would have left power on the table with the RPM,but not much...

If you get another hood....the Brodix HV1000 is a wicked mid to high RPM intake.....hard to beat once cleaned up.

Jebby

AirBusPilot

551hp w/air gap. 415ci.

Tibbs

My cam will be custom ground and will be delivered in approx 3 weeks. What are the rpm numbers on your cam card? As i understand it, since I am planning on a lower rpm torque engine vs. high rpm, the single plane might not be the best intake for a lower rpm build. But hey, I m learning as I go..I really appreciate all the forum members input..gives a lot to ponder

fishslayer143

a dual-plane will make better low -mid range power and response .. single plane works better at higher rpm and higher gear ratios

resdoggie

RPM range is 2300-6200, 227/233 I/E @ 0.050". It's a Howard's hydraulic retro roller. I have an M21 close ratio with a 3.55 rear. You know, I read all the information I could get on SP and DP intakes and looked at some dyno comparisons. There ain't much difference in the lower rpm range between the air gap and team g. Nor mid-range and high rpm. But there is a difference in carb pad height. The larger the air filter you can fit under the hood will let the engine breathe better. As I mentioned, I have a 4" high filter but due to the designs of the drop base filters, I still have a 3" high gap between the lid and the carb opening. You will be choking air flow with manifolds that have a high carb pad height like the air gap. It may or may not make a difference for making tq/hp. Anyway, in the end I went with the team g because it was far easier to fit under my hood, lots of filter area for the engine to breathe and a few lbs of tq loss doesn't concern me.

CheezMoe

That is a correct understanding. Based on that objective I would go with the Edel or Dart Airgap.