I purchased the SH 8 port in an auction. I broke it in this last week and used it to race Dirt Oval Late Model yesterday. Even running rich, it was excellent. I have three LRP spec III's which also work fine.

Was there a noticable difference in performance?? I would say no at this point.

After a very small amount of leaning out, it held up very well against a $600 California modified Novarossi .28. On our 340' drive line oval track I was able to be only .1 of a second slower than the other guy in fastest lap time in the A main and went on to win the A using the SH engine.

If I get the chance to buy another one I will do so.