351w na build combo opinions

General karthief said:

Did he make more than one run?
did he do any fiddling?
how long has he been running a dyno?

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I’m not exactly sure I know on the first run it made 430hp and he said he didn’t think there was that much more in it and then when I talked to him again after some more tuning it put down 470hp I just figured it would have revved a lot higher. I think the timing could be off as previously stated but he said that’s what it ran best at. I’m not very experienced with tuning on a set up like this so I’m a little ignorant on the subject.

a91what said:

An 11r head with 11:1 comp ratio... Depending on the fuel it may be over timed. Every 11r build on pumpgas I have done makes best power at 27-29* the 11r head is very efficient

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Yes I think you might be right I also notice he had a different ignition set up on the dyno he had my msd distributor and coil wires on but not my 6al box. So idk if that could affect the timing and ignition that much or not. I didn’t notice that until I looked at the pics some more recently So that’s another thing I need to address tomorrow.