Ive been running this setup for almost a year and never had a problem but now I think im getting detonation for some reason. Everytime I hit 7lbs I feel a major drop in hp, at 6lbs it boosts fine. Im using the endyne modified bosch and a vortech 12:1 FMU for fuel. Timing is at 14. I think my Vortech FMU is broken because I tried retarding the timing even more and I felt power loss as soon as it started boosting. Any suggestions?

 

you check your plugs? O2 sensor? diaghram on the vortech?

if you need that vortech unit, I have one used with the 12:1 and 8:1 diaghram.

 

The plugs are fine and im running an open downpipe right now with only 1 O2 which seems to be working fine on the A/F meter. How do I check the FMU?