70 dart 470 ci drag car build.

PRH said
Sounds like the work you did on the manifold is paying off……. Nice job.
On a low deck 452 I tested years ago, a basically ootb TR lost 37hp from its peak at 6200, to 6800.
Then another 76hp by 7300.
It had all the classic signs of a valve train control issue……other than it sounded fine.
I would have probably explored that some, but I’d already made a bunch of pulls with a single plane and a dominator, and it had a very nice curve up top with that combo on it(lost 27hp from its peak at 6500 up to 7300).
The TR lost 113hp from its peak at 6200 to the end of the pull at 7300.

Peak to peak the TR was up 20tq/26Hp to the single plane………but at 7300 the single plane was up 60hp.

Some formula I found at the time showed the TR to be tuned for about 6000rpm on that combo, which seemed pretty close.

Thanks, when you said it would be a good idea to test out to the finish line rpm I was wondering what it was doing too because at the end of the last few pulls at 6300 the hp graph line was still carrying on straight out.
I can't remember what the loss from peak HP was but I'll show that but since it peaks at 57-5800.
Now some people might think 5800-6800, **** that's only 1000 rpm but under load that's a lot more rpm in my book...I was nervous but I'm pretty impressed with this build and to here Tim actually say that was pretty cool too.