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"* Enter values for specs by moving highlighted cursor to chosen spec"
"  and typing in the new value followed by <Enter>.  The program will"
"  warn you if the value entered is outside normal limits."
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"* For specs ending with (C), either enter a value for the spec, or"
"  enter C and press <Enter> to display a menu to calculate that spec"
"  from more inputs, list options for the spec, or more info. (p 68)"
" "
"* Enter 'Y' for USE THESE VALUES, press <Esc> or <F1> to use these"
"  values for this engine and 'back out' to the MAIN MENU."
" "
"* Press <F2> and enter 'I' for definitions of each spec."
" "
"* Press <F3> for Examples of various combinations of specs for"
"  specific heads, exhaust manifolds and headers, and exhaust "
"  systems. (p 92)"
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