750cfm 1407 Eddie on my Duster 360 started and ran great but it wasn't great on fuel economy but made very good power on my midly built 360. I used a 1" 4 hole spacer and a manual choke for cooler weather starts. Hot weather starts were never a problem and I used 93 octane premium gas with 10% ethanol.

1970 FE5 Duster 360/904/3.91's SOLD 1973 TB3 SpaceDuster 340/4spd/4.10's SOLD Moparless for now but when the opportunity is right I'll have another one.