So I went to the dyno expecting some decent numbers. It was a Mustang dyno that I’ve actually been on with other cars. Nicknamed “The Heartbreaker”, this dyno gives more humble numbers than the brag-force-one Dynojet.
First pull – 14.5psi netted me 344whp. I wanted at least 375. Steve Kan – a local tuning guru who was running the dyno day – turned to me and told me it’s running scary lean. Over 13:1 AFR. I told him to turn the boost down on the Blitz SBC-id a couple of clicks and do a second pull. He did, still around 14psi and over 13:1 AFR.
So we backed it off the dyno and I drove it home off boost as much as possible.