Thread: 6-71 or 8-71?
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07-29-2005 11:01 PM #1
6-71 or 8-71?
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!
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance