I never listed new combo from this year. Engine Dynoed 668hp/530ftlbs.

Block: 72 2 bolt,.040 filled to lower water pump holes, oil restrictor kit in mains, main girdle with ARP studs, Melling HV oil pump with hardened shaft,usual machine work/Balanced.

Crank:3.75 stroke Eagle forged steel, knife edge counter weights.

Rods:6.125 Eagle H beams with good ARP bolts

Pistons:Weisco customs,cr 13.50+, rings are from Weisco

Cam/Valve train:Custom Comp Roller 266/274@.050, lift 728/728, 109cl, installed at 105. Springs are Isky tool room with titanium retainers. Yella Terra rocker arms, timing chain is Ausy roller(rollmaster). Custom length 3/8 chrome moly push rods.

Heads: Ford aluminum A3, ported by Modern Cylinder Head in MI. I can list all flow figures if people care. IN. 375/.800 EX .276/.800. Valves are 2.15/1.71 Use ARP studs.

Headers: Custom built from unwelded Hooker Super Comps 1 7/8 primaries, with 3.5 inch collector. To run A3's in Cougar/Mustang need to cut shock towers.

Intake/Induction: Ford Motorsport 9424-A351 ported to match heads, Carb is Pro-Sytems, ?1000+cfm, Complete Barry Grant system, with 280 pump

Timing:MSD pro-billet dist. with Digital 6 plus Locked out with 36 degrees timing

Trans: Fully Rollerized C4 with transbrake from Performance Automatic, modified by myself, now with 6 clutch forward/direct clutch packs, and rollerized #9 thrust washer. Trans cooler with fan.

Rearend: Complete Mosher setup, spool with 4.86 pro gears, 35 spline gun drilled and lightened flanges, Cal-Tracs, 2 piece mono-leaf springs, Rancho truck shocks, Rear tires are Hoosier Drag slick radials 30x10.5 with 15lbs air.

Performance: Leave at 4000rpm, shift 7300/7500, traps 8000. 60ft 1.36, 10.01@134.76mph. In 1969 Cougar weighs 3275lbs with me in it.

I for one would like to have alook at head flow numbers and dyno sheet if you could.
Nice numbers too by the way, whats you converter stall speed?
Thanks.

I have to scan head flow figures, do it tomorrow. Heres Dyno sheet. My Convertor is an ATI, 8 inch, it 5000+, flashes at 57/5800..Thanks Tim

There is abit more to be had yet by the look of those a/f figures...thats fairly lean for best power production..

Hey, Thanks for the comment, but what do you mean, can you expound on this. Most power comes from edge of leaness right?...Tim

Tim, most engines produce max power when a/f ratio is around 12-12.5...inotherwords, on the rich side.

Usually 12.7 to 13.2 for max power with normal unleaded, but do to uneven ratios between cylinders (especially carburators) and reading an average between 4 ports with one O2 (typical), its safer to stick with a richer number.

Racing fuel usually has a higher stoic number, around 15.1 to 1 verse 14.7 to 1 for normal unleaded fuel.

I have to scan head flow figures, do it tomorrow. I posted the dyno sheet before. I tried to do it tonight but whole sheet was not commming out. Let me do some fanagling. My Convertor is an ATI, 8 inch, it 5000+, flashes at 57/5800..Thanks Tim
NUMBERS THERE NOW???