if i had a scanner readily available than id help you, but i really think that the long term decision to buy the helms for $60 is your best bet. you can do anything to the engine with the bible.
its sorta like the h22a rights of passage...
at least thats how i look at it.

if you want to be the guy who knows what the **** he's talking about at the races...than buy the helms.
worth every penny i paid for it...($92) 2 years ago.

~boom