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What size engine. Cid will make a huge difference.
What are you gonna use this engine for; as in DailyDriver,Street/strip/,etc
How much flywheel?
Car weight?
Gears?
TC?
Fuel?
Altitude?
Your tuning skills?
In a 360 lumpy starts around 220* on a 110LDA. But a 230/110 can be tuned to be smooth, but lumpy. By 240/110 things are not smooth, and by 250/108 there is nothing but lumpy