Brodix B1-BS Aluminium Heads ?

The heads have been on the car for 3 weekends of racing. I finally got back to MapleGrove Raceway this weekend, so I could weigh the car and compare its et's to earlier this year at the same track, with similar weather conditions. My old heads were 906 heads, not 915 heads as I stated earlier. The car weighs 45 pounds lighter. With similar weather conditions to the last time I was at MapleGrove on May 7th or 8th, the car picked up .20 to .25 et., from 10.05et- 10.11et in May. To a New best et of 9.841et - 9.87et on saturday June18th. Also picked up 1-3/4 to 2 mph at half track and finish line. Rpm's are about 300 higher at finish line. The 60 foots also dropped from 1.329 to a new best of 1.308. The Brodix heads that I installed , are just as they came out of the boxes. They will get ported over the winter, for a little more POWER, for next year! According to my Performaire weather station, the car should run 9.65et's in the good fall weather!! It was a good weekend (not a great weekend), I lost second round on saturday, with a red -.003 light. On sunday , I lost 3rd round , with a red -.007 light. I had to dent 3 header tubes when I installed these heads, the 3 tubes were replaced before this weekends racing. Also , the heads are about 1" taller than the cast iron heads, raising the valve covers about 1", hitting the underside of the hood. So I had to raise the hood about 1/2" , to clear the valve covers.