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The 2.5 liter gives you an extra 500 rpm to play with because the redline is set at 6300 instead of 5800. For a track car I would use the 2.5 liter, for street driving, the 3.0. The 2.5 liter ecu never went lean on my car (with a wideband AFR meter) but had/has stumbling issues when it's cold and at hesitates at partial throttle just like the old 2.5 liter did, and when puttering around town (even when the AFR is good..not sure what's goign on here).
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1987 Milano Platinum - check for many new items. PARTING OUT
1989 Verde - Harsh shocks and SS rears, 27mm torsion bars, stainless lines, pads, 16X7.5 rims, 4.10 rebuilt platinum tranny, poly bushes, and RSR 28mm front and 25.4mm adjustable sways!
1984 GTV-6 - 80K miles
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