[Oafus]

I would guess that you could benefit from some porting in the heads. I've heard that the Shelby heads don't breeth as well as the Edlebrock right out of the box, but they have more meat in them to allow for more extensive porting. The problem is that you may start to lose torque at the lower rpm range. With the torque curve you are showing now, you will get neck snapping throttle response at any rpm, which will make it a fun car to drive. If you get into the horsepower war for bragging rights the car will be less fun to drive on the street. I've got a '66 GT350 that I vintage race. It has a 289 with 450 hp at 7200 rpm. It is a great track car, but no fun on the street.

I suspect that the SCFM numbers on the sheet are reading a little low due to the high ambient temperature. In other words your were sucking more that 650 cubic feet per min of hot air which equates to 650 CFM at Standard conditions of temperature and pressure. The dyno machine calculates all of that and normalizes the number to standard conditions.

You won't complain that you are underposwered until you go the the race track and sombody with a 540 ci motor and 700 hp pull you in the straight.

Craig