AC Delco/602 Sportsman Modified – Rules Clarification for “Champ Show”



AC Delco/602 Sportsman Modified – Rules Clarification for “Champ Show”

AC Delco/602 Sportsman Modified – Rules Clarification for “Champ Show” – 

 
Weight – All cars must weigh 2,350 lbs., post-race, with driver in car.
 
RPM Control & Chip –
All cars are required to utilize the MSD Digital Rev Box No. 8727 CT. All wires must be visible. No cutting of any wires permitted. Ground wire MUST be grounded to the intake only with nothing else attached. There is a spud on the left side of the intake between the carburetor and distributor for this purpose. A maximum RPM of 6,200 permitted. All boxes are subject for confiscation for further testing. Rev box must be mounted outside the reach of the driver in the engine compartment easily accessible by track officials.
 
Fuel – Open Fuel Rule 
 
Tires – American Racer Tires Only – Front Tires: 33 & Harder, Left Rear 44 & Harder, Right Rear: 48 & Harder 
 
Shocks – Open Shock Rule – One shock per corner ONLY 
 
Engine Rules: GM Crate 602 engines only with Track Seals (DIS, NES, etc). Engines must remain in stock condition. All internal parts must remain stock. No aftermarket parts permitted. Track officials have the right to perform any tests they deem necessary for technical inspection. Any engine competing is subject to further testing and confiscation by track officials.
 
Carburetor – One – 4 Barrel Carburetor Only. (Recommended – 650 CFM Holley)