I'm not sure what you are asking, but if it is a good engine, buy it. with the right waste gate, it will make 20 psi. And that's good enough for low 13s, in a notch. I am still thinking about buying an 86 SVO comp prep. Stock, that little pony will run high to mid 13s and with a waste gate, 12s are attainable. So, if the engine is from a good shop that you trust, it should be worth about $1500-$2200. But give more info on it and I can help more.
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1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, est 1/4mile time of 10.5+/-
1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph
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