Originally Posted by
3rici985
Houston,
That FMS is awsome. I have about 1 1/2 Gallons on it and it finally came in. I'm trying to get a race tune on it now and i'm having some troubles. I am using the same venturi that came stock, I'm running a 97T plug and picked up a Dynamite 053 pipe and header, and i'm in california Sea Level. Can you give me a starting point for needle settings. and possibly what the needles were stock.
I'm super fat now and i'm getting about 9-10 min can't wait to see what kind of run times i'll get with a race tune.
Eric
the fms needs a little extra fuel on the low speed so do not get the low speed too leaned out . it has some different ports that effect fuel scavenging from the crankcase . needles with what you got setup should be around 4.5-4.75 turns out on low speed and 3.5-3.75 on high speed
dont be afraid of temps in between 235-270°