The day he had it dyno'd was probably a very low correction factor.. it was a pretty nice day to Dyno.
Here's a stupid question but maybe not because I think I just answered it in my head but Dyno correction factor which are usually a set bp, temp, sea level and a few other things.
Example my...
Where did you find those?
I just rebuilt a set from Clearwater I think, be careful if they have longer valves than stock you'll run into much more than you want.
If they're stock valve length then that's good.
That's not a bad price.
I would assume a larger port in the cylinder head and more volume in the intake manifold that peak tq rpm would have raised not not lowered by 20 rpm & your compression is up .5
This is interesting