How hard can a 273,run? (street/strip)?

Year 1971

Car ........................ 1966 Valiant {convertible}
Shipping Weight....... #2850 lbs.
Engine..................... 273 'Commando'
Pistons.................... 10.5-1 {Factory Pistons -Standard Bore} - Clearance .005"
Piston Rings ............ Speed Pro
Bearings ................. Federal-Mogul
Oil-Pump ................ Sealed Power {High-Volume}
Oil-Control .............. Windage Tray

Note: Engine Block 'not' Decked.
Note: Internal Engine components 'not' Balanced.

Camshaft ............. 'General Kinetics'
Type .................... Mechanical
Lift ...................... .455"/.455"
Duration ................ 276*/276*
Overlap ................. 44*

Cylinder Heads ....... #2658920 > Competition Valve-Job {3/Angle}
CC'd ..................... 60.0
Valve Springs ........ '340' Single-Coil w/Damper {#234 lbs. @ Valve Open}

Intake .................. Stock Cast Iron Single-Plane #2536563
> Center butterfly section removed, and outer plenum edges smoothed.
> 'Mr. Gasket' {1" Spacer} Heat-Dissipator

Carburetor ............ Carter AFB #4120S {500 CFM} ~ Re-jetted

Distributor ............. 'Stock Factory' Dual-Point {w/Performance Curve}

Headers ................. 'Belanger' {1 1/2" Pipe x 44" Tube-Length}
Collector Size ........ . 10" Length x 3" Outlet

Transmission........... A-904
Built by; ................ 'Vitar'
Valve-Body ............ Manual
Converter .............. 2700 RPM Stall-Rate

Gears .................... 4.33

Suspension ............ Stock {Heavy-Duty}

Slicks .................... Goodyear {7" Wide x 27" Tall}

Performance .......... 14.80's @ 93 MPH

NHRA Class ........... K/SA {12.00 to 12.49 Wt/Hp}

1971 Track Results ... Won '9' Class Trophy's out of 17 Events