Hey guys just got my F1 from Dave at Tenperf.com(great guy)Wanted to know what are the limits of a stock block?All internals are forged building a 383 starting with about 15 psi but plan on raising boost as other mods are made.Like tranny,rearend ect ect may even add a little nos later.Thanks guys

 

I made over 900hp at the crank with the stock l98 block. It has splayed caps, and a short fill (filled to bottom of the freeze plugs. This was with 19psi intercooled boost with a conservative tune.