It is now a 383 (9.5:1), with a Performance Automatic stage 2, 700R4 tranny, and a Detroit Trutrac rear end. It has stainless headers with dual Flomaster exhaust. Of course I had to have a chip upgrade and a hi-flow fuel pump, even though I still have the TBI that was bored a bit but with the same injectors.
This is a little more info on my truck along with the rest of the dyno sheets.
It is an '89 Silverado, that I bought new in late '88. Of course it is a stepside, tilt wheel, cruise, AC, PW, PL, PS, and polished stock wheels, The next things I have added. 275/60/15 tires, Pioneer radio with CD player, Rockford Fosgate speakers, power bucket seats and console, 2400 torque converter, B & M Megashifter, drilled and slotted rotors, It has a new paint job (original color). This is in addition to what was on my original email. It has now 246,000 miles on the body. Almost everything else on the truck is stock.