TIRES AND WHEELS:
Tires will be maximum 8 inch tread face GOODYEAR short trackers, 22 inch or 23 inch on 7 inch x 13 inch maximum rims.  13 inch steel or aluminum wheels to a maximum 7 inch rim width permitted.  Any non-racing approved steel rims used on right side must be reinforced.

ENGINE RULES:
Must be make to make. Must be no hammering or modifying the firewall. Any pushrod or single overhead cam engine, with no more than 2 valves per cylinder with a maximum displacement of 2300cc (maximum.060 overbore). Engines with twin cam, multi-valve factory EFI, are allowed, but must have no engine modifications whatsoever. All engine components must remain stock (no knife edge cranks, custom rods, exotic pistons, etc.). Valve size must be stock as production. Any flat tappet crankshaft allowed. Balancing allowed. Must be normally aspirated (not turbos, superchargers, NOS, etc.). Flat top pistons only. Must meet stock specs, but may be aftermarket TRW, Sealed Power, etc. Keith Black pistons may be allowed but must meet stock specs. No lightening allowed. No racing pistons ( e.g. Venolia, Ross, Wiesco, etc.). Must use stock, stock length rods for that engine (not interchangeable). Must use stock crankshaft. No mixing and matching components to achieve non-stock engine combinations.

HEADS:
No porting, must be untouched by any grinder, etc. Must have stock size valves for that cylinder head. May polish combustion chamber only. May change valve springs. Must have stock, stock ratio rocker arms. No roller rockers, exotic pushrods, etc. May do modifications to allow solid camshaft. 1500 and smaller pushrod engines may be ported and polished.

INTAKE:
Must be a stock intake. Non-exotic. Absolutely no grinding, polishing, etc. Must be untouched by grinder, etc. Maximum 1" adapter plate (except 1500 cc pushrods).

CARBURETOR:
Any stock application carburetor - 1 bbl, 2 bbl, or 1x2 bbl. carb. Absolutely no exotic or performance carbs (Weber, Solex, etc). No modifications other than jet changes and power valve changes. May remove choke assembly, but not choke horn. No Barry Grant, Chuck Newton, etc.

BASIC SAFETY RULES:
Must have approved fuel cell or approved tank. All fiberglass seats must be reinforced. Must have 5 point SFI approved seat belts. Must use round tubing minimum 13/4" X .095" thick HRW in main cage (existing cars allowed 1 1/2" X .095"). No square tube in main cage or for safety structures. Helmet must be SNELL 90 or better. Must wear clean coveralls or driving suit (driving suit recommended). Crew must wear uniform or pants and shirt. If fuel cell is mounted below trunk floor, a fuel cell guard is mandatory and must extend below fuel cell bottom. Seat must be mounted to roll cage with a frame.

SPECIFICATIONS FOR SEALING MOTORS:
Techman must be able to see bottom end, intake and exhaust manifolds and head. One intake bolt and stud must be drilled for safety wire seal. Two corresponding oil pan bolts must be drilled for seal. Provisions for head to block seal must be made (unused hole in head and/or hole in block with drilled bolts). Adapter plate and carb.

IGNITION:

Must have stock points or electronic ignition. No amplifiers or ignition control devices.

EXHAUST:

Headers allowed. Must extend behind driver. Exhaust in the drivers compartment must be protected by a shield.

TRANSMISSION/CLUTCH:

Must have stock torque converter. Must have stock flywheel - no thinning, lightening or modifying (1 1/2" hole must be drilled in dust cover to facilitate tech). Must have stock pressure plate and clutch disc. Transmission must be stock and work in all gears. Must have stock starter. Bell housing must have a conveyer belt or scattershield to protect driver.

BODY STRIPPING RULES:

May completely gut interior. May remove trunk floor, but stock unibody sub frame must be intact. Must have rear firewall. May completely strip doors, trunk and hood, but basic interior structure must be complete (check with tech before cutting). Cars with structural suspension points in front suspension must not remove front inner fenderwells, but should tie struts into cage structure. On strut cars you can remove all nonstructural metal up to the front of the strut towers, but any frame must remain intact and stock.

CAR SPECIFIC RULE AMENDMENTS:

Datsun 1000 cars may build upper and lower control arms and substitute ball joints - arms must be close to stock dimensions. Ford Pinto and Chevy Chevette may move upper control arm mounts to accommodate camber - other makes and models of cars will be considered for this rule on a per car basis.

ENFORCEMENT OF RULES:

All cars will weigh I pound per cubic centimeter. A 1% margin of error will be allowed in car weights. Weight is subject to tech. Any car with apparent edge will have weight added to tighten field (AT TECHMANS DISCRETION). Any parts deemed illegal, or exotic by techman or promoter, WILL BE CONFISCATED and will become possession of T.M.S. to be sold or auctioned at promoter’s discretion. ALL CARS ARE SUBJECT TO A TEARDOWN AFTER ANY RACE (except the Saturday of a double header). Within 5 minutes of the end of the Mini Stock main, ONLY the registered car owner or driver may protest the engine of any Mini Stock competitor. He must take a written protest form, along with $100.00 CASH to the Pit Boss within 5 minutes or the end of the Mini main. If the protested car refuses to tear down he will automatically lose all his points to date. If the car is tore down and found to be illegal he will lose all his points to date. If the car is tore down and found to be LEGAL he will receive the $100.00 cash. Defining teardown -- The cylinder head will be pulled, as will the intake manifold and header. The stroke and bore will be measured and the valves measured. The ports will be checked for any grinding or illegal machining. The lifters (OHC) will be checked for correct ratio.( THE PROMOTER RESERVES THE RIGHT TO TECH ANY PARTS NOT MENTIONED ABOVE.)