Very nice job Ross, by the way where did you find a set of 1 7/8 truck headers? Been looking for some for mine

Lol yes sir, gonna just tell them it's just an old dump truck engine, lmao
Thank you sir

Just an update, got the miss problem fixed. Ended up being not enough voltage feeding the the coil and the distributor module . Ran a switched 12 volt wire from the battery straight to the module and problem solved. Didn't beat on it after that and ran it with the 850 demon carb with a 1" spacer instead of the dominator. Made 640 at 6500 and was still making power and no sign of detonation or float
. Still has more to give with the other carb but was time to take her home and installed.

Will definitely do,thank you sir

Looks cool.  I'd agree that the data is suspect.  Torque at 1.4+ per cubic inch is really high but achievable in a very well refined build.  But couple that number with the obvious instability at high RPM, and what you were hearing on dyno - and I would be questioning things.  Once the engine goes unstable, all the data and A/F ratio stuff goes out the proverbial window.

I have successfully run solid roller FE engines past 7500 RPM with 230ish seat and just over 600 open, with cam lifts in the low/middle .700s.  But Jones stuff has a reputation for being pretty aggressive and probably needs more spring than that.  Those .080 wall pushrods are a definite potential issue.  I had a solid roller build that ran customer supplied pushrods which turned out to measure .047 (!) and - after bending a couple - it gained 40ish HP with a set of .135 wall ones.

Yes sir, I am wondering about that as well. Thank you sir for all the help and support and providing the stroker kit for me

We're going to get it figured out, one step at time. Still have tweeking and tuning to do.  Figured I'd go ahead and show what we got going on even though it's a work in progress, for a old full size street truck,lol

I'm really starting to think you don't have enough spring.  Not leaning towards distributor miss.  What you were probably hearing was valve float.

Seat pressure is most important but open plays a big role.  What was seat pressure?  Open pressure should have been 650-700 lbs.

Will double check

Plan on re running it after a dist. Change