I've owned my '67 Shelby for almost 30 years and I've been racing it since 1991. It was raced by a previous owner as well. Brainerd International Raceway is my home track, but it's a bit of a tow and my previous career usually had me working most weekends, so I generally take advantage when racing the car by running multiple brackets, some times running all 3, Sportsman, Pro and Super Pro the same weekend. I occasionally run Super Pro even though I don't utilize any of the allowed "Gizmos" like a delay box. I do use a mechanical throttle stop though to slow the car down so I can run Sportsman ET ( 12.00 & slower ) so most of my runs are never "all out" full throttle. And being bracket racing, a lot of the racing runs are "on the brakes". I did find a nearly full throttle run though from a few years ago. One important thing to note, and some might find interesting, most of the time I run the car with a single Holley 600 double pumper. Since I slow the car down and don't run full throttle most of the time I feel the small carb helps keep the throttle response up and lessens the amount I have to run the throttle blades closed. The factory Shelby roll bar isn't NHRA legal for quicker than 11.50 and I don't want to get into buying new seat belts every couple years either, so I keep the ET's slower than 11.50's. The original Shelby 428 ( the internals had been changed ) has been pulled and set aside, although I did race with it for the first 15 years. The current 428 used to reside in forum member Steve P.'s '57 Ford. The car is street legal with a change of tires.
Here's the run info:
June 4, 2011
11.579 @ 115.41 1/4 mile
7.349 @ 93.07 1/8 mile
1.598 60 foot
Brainerd Itn'l Raceway - 1200' actual elevation
72 degrees, 50% humidity, 28.80 Barometer - 1958' corrected elevation on my weather machine.
1967 Shelby GT 500
'68 428 PI block, .030 over
428 Ford crank
Scat rods
12:1 compression Speed Pro pistons
C6AE-R Ford heads, ported & CJ valves.
C6AE-H Ford PI intake manifold
Crower solid lifter flat tappet cam .580/.589 lift - 254/258 duration @.050 - 109 lobe separation
Harland Sharp rockers w/Dove end stands
Hooker Super Comp 6114 headers
Meziere water pump
Innovators West harmonic balancer
MSD Distributor & MSD 6T
Holley list 4776 600 Double pumper w/choke removed 64/76 jets
C6 Automatic with Ford Motorsports wide ratio kit
TCI 10" race convertor approx 4500 stall
B&M shift kit
Mark Williams aluminum driveshaft w/1350 u-joints
Ford 9" 4.56:1 gears with Strange spool & Moser Axles
Goodyear 26" Front runners with Weld Wheels
Hoosier 28"x9" slicks with Bogart 15x8 wheels
Stock front suspension
CalTracs with stock springs and Rancho adjustable shocks
This run was with open headers, but normally I run full exhaust.
3365 lbs with driver
Engine work by Breeschoten Racing Engines - Cokato, Mn.
