I got a built 4V shortblock with 11cc dish pistons ( around 9:1 compression ratio) The block was built for boost but long story short i'm running it N/A now and plan to spray a 125 shot on top of it. My N/A tune has 27 degree total timing. I've been talking with a guy at the track with a mach1 and 150shot and he is running 19 degree total timing on 92 pump gas. I'm wondering how much timing i can run on a 125 shot and 92 pump gas since i only have 9:1 compression ratio ?

Please help.
Thanks!

I didn't find the right solution from the Internet.

References http://www.modularfords.com/threads/211114-how-much-timing-with-low-compression-short-block-and-125-shot

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