Straight to the track! 383 or 408?

[J-Rod#7]

HI! I'm a newbie so please forgive me. I have just recently acquired a 67 sidestep (no engine/no trans). I'm building this truck to go straight to the track...I'm a speed freak that needs an adrenaline fix. Speeding tickets are starting to rack up and not to mention they crush your car/truck for street racing in Cali...Anywho, i was wondering if anyone has any suggestion on which engine is better for consistent and dependable drag racing? The 383 or the 408 stroker motor?
Any advice for a matching race transmission couldn't hurt either. Please and thank you for any and all suggestions.