75rwkw was the official figure on mine

that was with 10psi from less than 3000rpm

through a 1.75" exhuast

and running out of fuel at 4000rpm (later found leaky fuel reg)

with some inlet air leaks



since then fuel pressure is up, exhaust is mandrel 2.5" and hopefully now i have found all the air leaks

unfortunately with someone rear ending the old shell (one week after new exhuast) and the fact that i've killed a set of rings running 16psi just recently... i've only driven it for one week it in the last 6 months

i'd love to dyno mine again properly but im still playing with things, and a proper tune up will be $900

project put another block in (a14 this time) starts this weekend, then hopefully i'll build a 15psi capable a15 block on the side