Hi Monty,

I do not know if you remember me. Rick from Roswell, Ga. I bought a Plus 21-4C and a 9901SS pipe/41021 header set from you several months ago. I have finally gotten it broken in and working on a "race tune". I have tuning question. The bottom seems to lack snap and the top seems to fade to soon. That pipe set should give me solid bottom performance? It appears to be rich. When I lean the HSN the temps jump and the performance drops. Can you give me base line needle settings for a "race tune"? Currently I am running the HSN at 3.50 from flush and the LSN 5.25 from flush. I am thinking the LSN is too rich. What is a good temp for the 21-4C. I also notice the the tip of the LSN appears to be bent ever so slightly. Will that have a big effect performance? I am aware that when adjusting the LSN the slide needs to be completely open or it will damage the needle. Thanks again for you help!