Eddy head question

buy wheels.jmo

Is that the article with magnum heads swapped on?

There's no advantage there in flow, the chamber might be worth 5hp or ? depending.
As for aluminum heads, well the compression u have isnt very high to reap the benefits max comp for octane, but they do flow 240's over the fatory irons 'anywhere from 205-228cfm' at least thats what ive seen/tested. you could have some work done to the old heads and buy wheels for 1400+dollars, or ?
I dont see the motor pinging with only 9.1 comp + aluminum/closed chamber
Its your money.