[WHAMMO]

Originally Posted by kennyry83

Ya I'm not looking for big power NA, just power left on the table before proceeding with the rest of the build.

I didn't think to get the torque numbers, was frustrated lol.

Ya I know a high ram and 102tb will give better numbers but going f1a its not really needed, just trying to square away with NA. The real big issue is not pulling passed 5900RPM. Both tuner as well as Texas speed stated that it should be 550+ wheel with the setup including the LS3 intake and pull well beyond 5900.

Just as an example, tuner I use has a 427 with same heads although bigger cam, and 11.5:1 ish compression on 87(e10) octane. He got 551 stock intake/tb and 587 with aftermarket (msd atomic) intake/tb - also stock mufflers. (see attached dyno graph)

If you ask why 87? "Just to see if it can be done".

Maybe something else is wrong, but you cannot expect stellar results with what you have IMO.

Torque would tell a lot more ro the story.

The tuner might be good, but not having tq and rpm is a joke.

What car and CF for this other build? Too many factors can affect results.

Dyno numbers on my swtup can vary up to 40rwhp with just heatsoak...