I am getting ready to make the jump and put a blower on my 454. I have done a great deal of research on selecting which would be best size (6-71 or 8-71) for my application but can't seem to find any definitive answers. The motor is already a torque monster (Edelbrock performer package) built for bottom-end power (idle to 5500) but 470 lb/ft just isn't enough! I understand the advantages of both, i.e.
the 6-71 makes more boost at a lower engine RPM but the 8-71 produces less heat for the same amount of boost (on the same size motor). Does anyone have any real-world experience they can share? Also, I plan on running dual Edelbrock Performer 750's (AFBs) any thoughts on these carbs as opposed to running Holleys? Thanks in advance!