PRO 275 Any transmission Dual power adders "Prohibited" Tire - ( M/T PRO 275 only ) Any suspension No wheelie bars Generally Shaped, Stock Appearing Cars / Body No Pro Mods OEM Style Fiberglass / Carbon Body OK Stock Wheelbase +/- 2 inches Front Overhang Max 45 inches from center of spindle Any pro275 entry that has not been to a Radial outlaws 2022 event must be approved in advance to conform to general shaped body guidelines before race. Any current pro275 cars already racing will be evaluated at Alabama outlaws and will be notified of any changes that are needed to be legal as far as generally shaped body for start of January 2023 season. (+50 lbs. to any combo with more than 3 forward gears, Except Nitrous & Turbo Entries) BB NOS 5.0 - 2300 BB NOS over 5.0 - 2450 (905 & Smaller - 2400) SB SINGLE - 2350 BB SINGLE - 2500 (Non-Hemi 2425) BB TT - 2775 (ANY SIZE TURBO) BB TT (Non-HEMI) - 2700 (ANY SIZE TURBO) SB TT 2450 (Up to 4.500 bore space, under 500 cu in) SB TT 2625 (4.600 bore space, or over 500 cu. in.) SB TT 2700 (Hemi) SB PROCHARGER - 2400 (Stock Bore Space) SB PROCHARGER - 2500 (4.500 Bore Space) SB PROCHARGER - 2600 (4.600 Bore Space) BB PROCHARGER - 2775 (Non-HEMI - 2600) BB VORTECH (131 MAX ONLY) 2675 Centrifugal Supercharger The maximum specification for the compressor wheel tip to tip is limited to 140.99mm inducer diameter. Measurement will be taken at the point where the leading edge of the compressor wheel meets the inlet housing. All air entering the Supercharger must pass through a single inlet opening. Exducer backing plate and blade tip to tip dimensions may not exceed 188.99 (No Centrifugal entry with any gear drive or blower that is not readily available for immediate sale & delivery at least 21 days before race) (No test or prototype of any kind allowed) SB ROOTS - 2400 BB ROOTS - 2650 SB SCREW - 2575 (Stock Bore Space) SB SCREW - 2625 (4.500 Bore Space) SB SCREW - 2675 (4.600 Bore Space) SB SCREW - (HEMI add 50lbs. to any Bore Space Weight) BB SCREW - 2800 (Non- Hemi 2750) BB TWIN PROCHARGER - 2675 4 cyl. / 6 cyl. Combo -2475 (production engines only) (-150 LBS any cast block cast head combo) (-75 LBS for Cast Heads)