dynoed my 416

Hard to beat tti or Dougs headers on the street.

That engine is capable of putting a 3500# car deep into the 11's

I wouldn't toss more money at engine upgrades. Work on the chassis. Want to go fast at the track, overchassis and undermotor. Most folks do the opposite. People will spend 20K on an engine but not a nickle on chassis items that will make the car work.

Nice stout street engine you have there!