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1991 STD HB
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Recently picked up a 91 STD HB to get around, for now just going to do an obd1 conversion
Dpfi-obd0-obd1 conversion with chipped p28, y8 manifold/tb/injectors/obd1 dizzy, And a 255lph. Tuning with crome and aem wideband Get familiar with crome since I have only used nismotronic and tunerpro and e manage.

Would like to reach 140whp all motor eventually using the stock block. Thinking of using a delta regrind 282/vakvesprings&ret/port work(mostly reshaping and blend/2 layer gasket/head milling to get 11:1 compression. Would like to get 12:1 but noot sure if possible using the stock bottom end.



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\/Your Mom Was Here\/
Vibe GT
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4,832 Posts
140whp from a 1.5 all motor is not going to be easy. Build something with a nice torque curve instead of a peaky top end HP motor, you will be happier with the results.

When you say stock bottom end are you going to rebuild it or no. I wouldn't put all that money up top and not put some rings and bearing in the lower end at least.
 
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