[blykins]

I was talking about the ProMax guy...

But throttle response depends on a whole lot more than the size of the carb. I use 850's on 408's and 427's and with a manual trans car that weighs 2400 lbs, I've never had anyone say, "This engine has horrible throttle response!"

The last 351C I did had 4V heads, a dual plane intake, a smaller hydraulic roller cam with plenty of advanced cam timing, 10:1 compression, and a 750 Quick Fuel carb. It went into a '73 Mustang. The customer's response after he got it into the carb was, "I don't know how you set the cam up, but this engine takes off like a rocket in any gear at almost any rpm. It's hard to bog it down!"