MAT1955
Well-Known Member
Yes, altitude can make a 'uge difference as can humidity and temperature, You may feel your car is "crisper" and it may be - but - I'd bet serious money no one on this forum can detect a 6 HP difference on a 480HP engine. We had owners who we adjusted say a 383 from 400Hp down to 390HP to settle it down and no one ever noticed that or a 502 from 490HP to 480HP and never heard about that either. But, if it feels faster.......
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But I put up a good front.…lol.