Hi All, I have a 488ci Side Oiler with BBM heads, hydraulic roller cam, and a Ford MR 2x4 intake in my 69 Mustang. It runs great and is used for street and occasional strip duty. A couple years ago it made 568hp @ 5600rpm on a Super Flow dyno. I have always thought I could have eeked out more power if I spent more time on the dyno. When I installed the engine in the car I found a few improvements, but that's a different story. One of the things I wondered was how the engine would have performed with a Tunnel Wedge intake. Jay Brown's book, Intake Comparo provided some valuable info here. Out of curiosity, I graphed a few engines and came to the conclusion I am probably better off with the dual plane MR 2x4 given that I am on the street 80% and strip 20%. Notice the 2x4 wins below 5000rpm and the Tunnel Wedge wins everything above 5000rpm. My engine would only have 600-800 rpm more before power is done so a Tunnel Wedge doesn't make sense for me. The Tunnel Wedge makes it's power on top while losing at the lowend, especially with smaller cubes. I thought this was worth sharing since this is a topic I hear discussed often. I like the look of the Tunnel Wedge and the peak power "potential", but power-under-curve is more fun to drive. Thank you Jay for the info and to Blair for not letting me make a bad decision. 

Here are my initial results. A sincere thank you to Blair Patrick, Craig Bloom at Eastco Machine, Ray Paquet, and especially my own dad for helping make this engine project a sucecss. My dad worked and raced for Ford for 42 years and was an FE guy before I was born. We haven't always been close but this project was a true bonding experience that I'm grateful for. I am very happy with the outcome and can't wait to get the engine in the car. I will be using a 4R70W automatic with a 3000 lockup convertor which should be interesting.  I suspect there is more power in the engine if I changed the mechanical water pump, mechanical fuel pump, HV oil pump causing TOO HIGH high pressure, the 3.5">3" reducer at the end of my collectors and to some extent, the dual plane 2x4 intake. My goal was a great running and reliable engine for the street/strip. Mission accomplished!  -John


Performance Summary:
      Cubic Inches:  488ci                                  Dyno brand: Superflow SF902
      Power Adder:  None                                   Where dynoed: NW Dyno, Gresham Oregon
      Peak Horsepower: 568.3 at 5600rpm       Engine Design, Heads, Cam, Lifters, Pistons, Numerous other items: Blair Patrick
      Peak Torque: 584.3 at 4500rpm               Block machining and short block assembly: Eastco machine, Gresham Oregon
                                                                        Final Assembly: Yours truly




Horsepower and Torque Curves:
Red lines: No mufflers, No aircleaner
Black lines: With aircleaner and mufflers





Video: https://youtu.be/7B82-Q3nIjc

Engine Specifications:
   Block brand, material, finished bore size, other notes: Ford 1971 427ci Side Oiler Service Block, 4.250 .017 over
     
   Crankshaft brand, cast or forged, stroke, journal size: Crower billet, 4.300 stroke, 2.7487 mains
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts: Crower billet, 6.625, Big end dia 2.325, Pin end dia .990

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR: CP/Blair Patrick, Forged, 10.50 compression

   Main Bearings, Rod Bearings, Cam Bearings brand and size: Clevite

   Piston rings brand, size, other notes: CP Plasma Moly

   Oil Pump, pickup, and drive: Precision Oil Pump M-57AHV with 5/16 shaft (FAR TOO MUCH OIL PRESSURE)

   Oil pan, windage tray, oil filter adapter: Canton 15-820 pan with windage tray. Ford oil filter adapter (larger CJ version) WIX 51515R Oil filter

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050") Blair Patrick Hydraulic roller 611 lift

   Lifters brand, type: Morel Limited Travel

   Idle and Vacuum: Idles best between 950-1000rpm with 10inHG vacuum

   Timing chain and timing cover: Ford Motorsport timing set, Roush cover

   Cylinder heads brand, material, port and chamber information: Bear Block Motors Medium Riser Aluminum/Blair Patrick Prepared

   Rocker arm brand, type (adjustable or non-adj), material, ratio: T&D Street, 1.75

   Rocker shafts and stands, brand, material: T&D

   Pushrods brand, type, length: 3/8 Smith Brothers with oiling hole for rockers

   Valve covers, brand, type: 428 Cobra Jet Finned aluminum with modified baffles

   PCV: Wagner adjustable

   Distributor brand, advance curve information: MSD Pro-Billet 8594 Locked at 45 deg using MSD 6AL2-P

   Harmonic balancer brand: ATI 360deg damper

   Water pump brand, type (mechanical or electric): Edelbrock 8835 Mechanical

   Fuel pump: RobbMc 1100HP mechanical

   Starter: RobbMc

   Intake manifold brand, material, porting information: Ford aluminum MR 2x4 – Port matched

   Carburetor(s) brand, type: Two QuickFuel 750cfm vacuum secondaries/Blair Patrick Prepared

   Exhaust manifolds or headers brand, type: REF Headers with merge collectors/ Blair Patrick designed for FE Mustangs

Can any find Youtube video of Doug Smith's runs? I can seem to locate a single run.

Just saw Scott Miller in the red Cougar run 9:18 @ 131. Big wheelie! 

Can't timestamp due to the livefeed.

https://youtu.be/rzmetUWCbVs

I'm looking to buy a set of Doug's headers for my 1969 FE Mustang. I've seen several comments on the D627 headers but no real installation experience.

One concern is compatibility with my Canton T-Pan. Thanks for any comments.

I have an aluminum rear breather stack for sale. It is the oval type and believe it to be a FPP brand. Price is $55.00 plus actual shipping.

Hi Folks, I have a brand new Carter M6905 mechanical fuel pump for sale. It comes with a gasket and mounting bolts. It is by far the best off the shelf mechanical pump available for stock or high performance FE's. I recently purchased it from Summit Racing but ended up not needing it. FIRM Price is $65.00 shipped to lower 48 states.