Originally Posted by
mcdonaldm
yes it would be worth it. don't know how much it would cost to deck the block, but i can't see it being that expensive especially considering the gains by doing it.
9:1 is a good all around ratio to aim for. you will still need to run premium especially if pulling a load but shouldn't cause any detonation issues either.
rgds
Mike
9.1 to 1 should never require premium fuel if it is in fact actually 9.1 to1 and the timing is done right. Premium fuel comes in at about 9.5 to 1.