^^^These...
It's funny, I just took my 88 today with this Blue Print short block, my own heads and running TBI still. I was having so much fun smoking my one wheel peel 275R/60 tires at part throttle
After rebuilding/modifying 2 350s with flat tappet and roller cams I'll never go back - it's just too much fun but, I'll need to get a locker or some kind of posi for it - maybe even wider tires too
One thing I know - I'll NEVER RUN A FLAT TAPPET cam again!
Description: HP & Torque: 436 HP / 443 FT LBS Compression Ratio: 10.0:1 Hypereutectic Pistons Cast Steel Crank Block: 4 Bolt main 4.00" bore Passenger side dipstick Align honed main bearing bore Cylinders honed on computer controlled machine to within .0002 straightness and roundness Cylinders...
blueprintengines.com
They have long blocks on this site too...