04-30-2014, 07:51 AM
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CC Member
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Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,617
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Not Ranked
Good idea.
Roush 427 SRTW.
Altitude is at sea level.
Carb is a ProSystems 850 DP.
Mains are 76/86
Squirters are both .045
Runs slightly rich, but is freakin wild when you let it loose.
Mileage is 10 around town and 12 on the open road with a .80 fifth gear/ 3.46rear end.
My goal is to lean it down a bit but not sure where to start. Squirters seem quite large to me but there is no hesitation on throttle tip in or steady cruise at light throttle.
Still, after reading the setups on quite a few others, (with similar engine sizes and double pumpers) I'm thinking of taking the mains to 72/80 and the squirters to .37. and, yes, I would make one change at a time but how in the hell do you gauge the secondary mixture without a wideband? It's not like I can put my foot into it AND try to watch a vacuum gauge at the same time. I'm too busy trying to go straight!
And I already had it on the dyno where they tuned it for max power. That's where the current jet sizes came from. Not sure that's best for every day driving. It seems like I'm pouring a lot of fuel into those cylinders during normal driving.
Thoughts.
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Jim
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