416 N/A E85 550rhwp!
I have been told by my tuner that it is a valve spring related issue. I don't think that it is cause the heads are brand new with less than 3000 miles on them. I purchased everything from LME (heads,cam,rotating assemble, everything). I can feel it in the car it cutsout and comes back on. I can also see it on the wideband the AFR will be like 12.8 and then it shoot to 13.5ish and then comes back down.
I think it has to do with a coil or ignition somewhere. It pulls awesome to 6200 cutouts and comes back in. I want to get this figured out so I can spray this monster. The last pull is with the converter locked up. Its weird I didn't have this issue last year and the car ran a 10.51@128 all motor with a 1.47 60'.
I want to figure this out before winter so I can get my 9s pass this year!


Trending Topics
The Best V8 Stories One Small Block at Time
I have been told by my tuner that it is a valve spring related issue. I don't think that it is cause the heads are brand new with less than 3000 miles on them. I purchased everything from LME (heads,cam,rotating assemble, everything). I can feel it in the car it cutsout and comes back on. I can also see it on the wideband the AFR will be like 12.8 and then it shoot to 13.5ish and then comes back down.
I think it has to do with a coil or ignition somewhere. It pulls awesome to 6200 cutouts and comes back in. I want to get this figured out so I can spray this monster. The last pull is with the converter locked up. Its weird I didn't have this issue last year and the car ran a 10.51@128 all motor with a 1.47 60'.
I want to figure this out before winter so I can get my 9s pass this year!



Get this problem fixed this car should be a TQ monster right around where it breaking up. Also is there a cutout on the car?
I don't think its valve float either but the tuner swears up and down that it is.
But from all the vids/threads ive seen explaining HOW and WHEN valve float occurs it would not make sense that at a higher RPM for the power to comeback.
Try googling "LS1 valvefloat".
In one of the threads i saw Damian chime in on that, when someone had a similar issue to you.






