orangecrush
Well-Known Member
- Joined
- Aug 8, 2008
- Messages
- 147
- Reaction score
- 0
Here's the dealio - we got my newly built 340 running good BUT - simply bolted the 770 Avenger on out of the box and set timing to what "worked". Obviously (500 mile break-in done) it's time to get it dialed in right. Is paying for the dyno time worth it, or are the differences with a weekend warrior (hard street driving - occasional track) noticeable ? I know of a few reputable speed/performance shops that don't have dynos but heard are good with Holleys and performance tuning - do I spend the extra and take it to a dyno ? Mild 340 (clone of the Dulcich 400 HP build).