fourplaydave69

In late fall switched to Edelbrock aluminum heads from stock iron heads on 540. Will these lean the motor out much? Have all winter to worry about it. Thanks

MILD THUNDER

iTrader: (3)

Probably not much. The edelbrocks don't flow much better than the stock Iron rectangles. Still good to check though.

getrdunn

iTrader: (7)

Ouch.... I wouldn't imagine either unless your did more than a heads swap. what kind of exhaust you have. If possible try and get an afr 02 over the winter. Best investment you'll ever make. Chambers same size as your old cast heads?

fourplaydave69

Chambers the same size. Running Lightning Headers. Dropped valve seat out of recond. iron heads.

getrdunn

iTrader: (7)

I ran lightenings when they were 1050.00 a set new. Loved them. They sound extremely nasty. At time had a sound all of their own. Back to your jetting though I think you'll be fine. I strive for best possible jetting no matter what it takes. Black plugs and carboned up pistons is unexceptable.

Baja Rooster

iTrader: (1)

I'm just curious why you thought that your jetting was spot on before?

fourplaydave69

When the motor was built ,it was dynode.