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3k gsk question
ive had my 3k gsk in the truck for over 10 months now, and i love it. recently i had the oportunity to dyno my truck at the fall brawl, and was happy with the hp and torque readings, but i studied the dyno charts and it seems like the truck was defueling heavily at about 2800rpm. is that a good defuel rpm with the 3k springs, or should it be higher? my other question is can i go back in the pump and make the springs one click tighter and will that raise the defuel rpm to maybe 3000, 3,200 rpm? my top end seems ok, but i think i can get more out of it.
wes
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97' 2500 dark blue 12v, 47RE, suncoast TDC,vb, bilit input, #0, fire ringd, 4kGSK, 60lb. springs, cut DV'S, 20*, .20 th. hd. gask.,SP 66/14, ATS intk. & exh. manifolds, isspro gauges, DDP stg. 3's, 5" stacks, AFE MC Stg 2, FASS 150/180 @45psi 471/1008.
Cummins Power Systems mechanic
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