13:1 Compression Pistons in 340 Small Block

krazykuda said

With that much compression, you will need to run a camshaft with lots of duration and overlap (smaller lobe separation)... It will have a choppy/lumpy idle, and you will have to run high octane fuel... You will also have to run a high stall converter and tall rear end gears... But it sounds like that is what you want, so get-r-dun....

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Thank you so much, Finally someone that could answer my questions lol. I’m sure I’ll have to run higher octane then 93 which isn’t an issue. Only others think is I’m not sure what type of torque converter I’ll need. I have 3.55, 3.91 and 4.56 gears for the rear end, I was thinking the 3.91 gears. I definitely wanna “get-r-dun” but for real thank you so much!