How to prepare for engine dyno?

After some tuning and the spacer it made 703 at 6750 and 624 foot pounds of torque at 5100. The pump 93 made 30 hp more than the 98 race gas and the PCV valve was worth 3 hp on the last pull.
Amazing what works and what doesn’t isn’t it.

A dyno is a tool just like a tire gauge, the numbers from your gauge may not match mine but both measure the changes made.
Exactly!

@mdaird looking forward to your results.