I have a TOP TSR12S3 engine just recently broken-in and I can't seem to get the tune just right.


I have properly set the HSN and LSN accordiing suggsted tuning techniques.

Here are the symptoms:

I bring engine up to temperature (approx. 200 degrees), then if I let it sit for more than about 10 seconds and take off full throttle, The car takes off fine with a nice trailer of blue smoke, and gets about mid way in its rpm range and just dies. When I say mid way, I am talking about the car running for about two seconds and getting at least 40 feet away from me before it dies.


I bring it back and it starts right up, no problems at all.


Once I get past that initial take off, things seem to be fine.
Meaning, I can sit for 10 seconds and take off without any problems.


I have tried several needle positions (mostly all on the rich side of things) and nothing seems to correct it.

The only thing that I can think that is somewhat common is that I think it always happens when I have a full tank of gas.


Any suggestions?