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Stock MAF reads up to 255, LT1 style if I remember correctly reads up to 512. But, the stock ECM can only interpret readings from 1-255....so with the LT1 MAF, the signal is basically cut in half and then to compensate the fueling is then doubled giving it the ability to provide fueling past the 255 barrier....thats the "extender" part of it.
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Rob
'87 Grand National Owned 17 years. 65#inj,HW 307, THDP,V4 IC, GT6131E, alky, no cat, Cold Air kit, Del-alum fronts, Gen2 T+ w/LS1 & LM1/LMA3 WBO2, JJ TB mod, 3000 PTS 9x11conv, Direct Scan, best 1/8th 7.23@96, best 1/4 11.61@119, 1.66 60'
'79 10th Anniv. T/A 6.6 all original 4-spd
'89 20th Anniv. TTA #426 stock, 15k miles.
'99 30th Anniv TA #707 Conv 1 of 535 conv..rarer than a GNX.
'95 Trans Am Conv LT1 w/LPE 211/219, LE2 ported heads/intake, and LTs/true duals
'94 Silverado LT4 w/LPE 211/219.
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