This was one that was done last year. Heads are based off the CNC program from my heads from Slawko and intake was ported by Slawko. Carb is a CFM 2.200" throttle blade piece. Its been 5.70 in a stock bodied B body on Caltracs and could take some nitrous as that was the intent originally. Owner has not even tried as he is happy as is. Car is 3900lbs with driver I hear. All steel all factory glass interior etc. Bear in mind dynos are dynos. I actually have a single 4 for mine that will be getting ported soon, I'm sure it cam make those numbers or a bit better with enough carb and mine is a tad smaller cubic inch wise.