Edelbrock Pro Flo 4 EFI

Hello: Refugee here from FBBO. Purchased the Pro Flo 4 for the 69 Coronet R/T for the same reasons as the OP. On back order until 10/26/2018. Looking for better performance in hot weather and high altitudes. Car is a driver. Runs perfect here at home at sea level. 4200 feet Reno @101 dgrees not so much. Got a million dollar tank from rickstanks in El Paso, and an access door for the trunk floor from Detroit Speed. Also,looking to extend fuel range from about 200 miles to 250 or more. 850 Demon works good, but ethanol causes heat soak fuel boil at 172 etc. Will be watching this thread. Thanks.