I ran into problems with a new OS15 FP on a profile Peacemaker : setup was standard venturi/needle etc no muffler - GRW 2oz uniflo wedge (the uh200 ?) - APC 8X4 - Enya 3 plug - 5 nitro/ 20 castor fuel. Engine was ground run 7/8 tanks on the bench no problems.

Symptoms in the air where immediate cut off in manoeuvres unless the needle was opened way rich and even then bunts could result in cut out. A switch to a narrower (width) tank was suggested but the only one immediately available was a shorter deeper Brodak 2oz profile wedge. This improved the situation but runs where still inconsistent with yet again a tendency to cut on the bunt. Is this engine tank critical and any proven suggestions for set up?

Cheers