Racing Fuel Systems

I picked up a very clean 1976 Buick core..6 tube air horn…very small upper and lower main air bleeds(.040”)…800cfm..electric choke..air lid APT control..front fed fuel inlet. My plan is build my first E85 only Quadrajet!, Hopefully someone here can share some experience with it in a QJ. Everything I have read says to jet it up to 30% larger…open the needle and seat to .150”…use small float…better pump. Any other advice would be appreciated. This will be installed on my brothers 72 Mustang 351C 4V.

My advice would be to use a 6000 series Thermoquad. Two float bowls, better design, more adjustments etc.