Re: cylinder head math

[LaJoMor@aol.com]

Sal...
Get a copy of the Competition Preparation Manual for the TR250/6. I believe 
they are available from the Big 3. It's a fairly small book (6x9) 32 pages 
but it's loaded with good info on modifications.  Mine is the 2nd edition, 
revised in 1980. 

Hope this helps....There is a lot of info on the questions you ask.  Dick 
Taylor recommended this book to me and it is very helpful.
Larry M
TR250 in Colorado