Old 429 scj on engine dyno vid

[69gt4speed]

Aold torino 429 scj on engine dyno w lt hdrs and prob Holley jet tuning. They came w a 780 holley and were rated 375 engine hp. Mech flat tappet cam, forged pistons, improved rods, 4 bolt mains on 2,3,4 main caps and 3.91 or 4.30 gears w I think a oil cooler and 4 speed toploader of close ratio. 493hp and 503 tq surprised me a lot.

http://www.youtube.com/watch?v=vEJUXUJfFQs