I found my old combo wanted a lot of pump shot when I foot braked from 1800 on E85, Ended up with 50cc pumps front and back and 50 shooters. 60' times got better till I ended up there. This was on a Indy headed 408 with a hp950.

My you will need at least 1 50cc pump to get the pump shot duration you need(the bigger the shooter the faster the pump is empty) when the carb is happy I think you will be happy with e85's performance/cost.