What kind of boost can be safely run on a stock bottem end of an 89 Supra Turbo? Also what are the average stock 1/4 mile times for those things?

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-Aaron
96 Red Camaro Z28 A4 TampaRacing.Com Sticker (16hp gain)
K&N FIPK SLP 1 3/4 headers LT4 KM 52mm TB flowmaster cat-back !cat 3.73 GM Motive gears MSD 6A MSD 8.5mm Wires HPP+ 160 Stat.
Best ET so far...13.1@105.5