If your Heads are Cast Iron they will be legal.  TY.

ANY AUTOMOBILE OR PICK UP.
105” MINIMUM WHEEL BASE.
MINIMUM WEIGHT 3200 LBS WITH DRIVER.
FULL BODIES REQUIRED.
FULL STOCK FLOOR BOARD AND FIREWALL REQUIRED.
STOCK CHASSIS AND SUSPENSION MUST REMAIN IN STOCK LOCATION AND UNALTERED.
LOWERING BLOCKS AND RACING SPRINGS OK.
NO WEIGHT JACKS.
NON-ADJUSTABLE NON REBUILD ABLE RACING SHOCKS OK.
NO HIEM FITTED SHOCKS.
CAST IRON BLOCKS, HEADS AND EXHAUST ONLY. NO ENGINE SETBACKS, ENGINE MUST BE IN STOCK LOCATION.
STAMP STEEL ROCKERS ONLY, NO ROLLERS.
GUIDE PLATES AND SCREW IN STUDS OK.
NO ROLLER CAMS.
NO PORTING OR POLISHING OF ANY KIND.
CAST IRON OR ALUMINUM INTAKE OK.
HOLLEY 4412 CARB ONLY. NO MODS.
STOCK OEM TRANSMISSIONS ONLY.ALL GEARS WORKING.
AUTOMATICS MUST HAVE STOCK WORKING TORQUE CONVERTERS, 11 INCH MIN.
MANUAL TRANMISSIONS OK, STOCK STEEL 10 ½” SINGLE DISK CLUTCH & 153 TOOTH MINIMUM STEEL FLYWHEEL ONLY UNALTERED.
AFTER MARKET FLOATER REAR ENDS OK. SOLID STEEL AXLES ONLY. NO RATCHET OR LOCKER REAR ENDS. FULL SPOOLS AND MINI SPOOLS OK, STEEL ONLY. WELDED GEARS AND FORD 9 INCH OK.
STOCK MASTER CYLINDERS ONLY ALL FOUR BRAKES MUST WORK. NO ADJUSTABLE PROPORTIONING VALVES ALLOWED.
8” TIRE TREAD WIDTH MAXIMUM.
8” STEEL WHEEL MAX. NO RACING TIRES. D.O.T. TIRES ONLY.
MUFFLERS MANDATORY.
360 CI MAX.