Almost the same motor and gearing as the one in the 81 TA i put together for the kids to drive to high school. it originally had my 78s original stock 6X-8 motor in it with an XE 262 on a 112 LS. I replaced it with a 400 with 6X-4s originally 93cc, milled 0.050 but smoothed the chamber ridges so still measures 93cc. Port matched, valve pockets cleaned up. Ferrera 5.09 D port valves. HS roller rockers.RA 2.5 manifolds dual cats(had to pass a sniffer back then)I used a Summit 2801 in it. Performer intake port matched Q jet. nice sound at idle ran good. With a super tight factory convertor ran a bogging 14 second. But i added a 13' Continental convertor -just never made to back to the track. That made a world of difference though can spin the tires now!
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Skip Fix
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