Carb Venturi Size for 470 ci
Consider the following engine/drivetrain combo in a 66 Dart:
470 ci B-stroker (10.5:1 SCR)
SFT cam 260-ish* @ .050" and 0.650"
Modern Cyl Head cnc'd Edelbrock RPM heads w/ Victor 383 manifold and 1.5" open spacer
727, 4.10's, and 30" tall tire
The car will be driven a lot on the street and taken out to the 1/4 mi. track as well. Which carburetor venturi/throttle bore size would you go with of these three choices? I've got all three on the shelf so I'll be trying them all when the time comes, but I'm curious which one you guys think would provide the best street and track performance.
- 1.375" venturi, 1.75" throttle bore (BIGS "950")
- 1.450" venturi, 1.75" throttle bore (Brawler "950")
- 1.5625" venturi, 1.75" throttle bore (Holley 4781 "850")
