What carb should I get? I need to order asap. I'm looking a the Holly Truck Avenger 670 with Electric Choke or should I go with the Edelbrock Thunder Series AVS 650 Offroad with Electric Choke? Price is about the same so not an issue. Is the electric choke $40 better than the Manual Choke? Here's my truck's specs and usage: 72 K5 400ci SBC Approx. 370hp and 390 ft lbs torq. TH350, D44 & 12Bolt Light Trail Use Heavy foot on street Help!