piston to cylinder clearances

I am about to have a block machined for my Pinto.
it will be tunnel bored and decked.
My question is what piston to cylinder clearances are recommended.
It is to be .060 " OS and running ACL cast pistons.
It will be used in my gravel rally car.
thanks in advance for any advice
it will be tunnel bored and decked.
My question is what piston to cylinder clearances are recommended.
It is to be .060 " OS and running ACL cast pistons.
It will be used in my gravel rally car.
thanks in advance for any advice