You didnt say what year your motor is but as long as its an 87+ then your Ok with stock pistons and the 1.7's. I wouldnt run stock valve springs though, they are marginal for the stock cam and will float pretty easy with that much lift.
You didnt say what year your motor is but as long as its an 87+ then your Ok with stock pistons and the 1.7's. I wouldnt run stock valve springs though, they are marginal for the stock cam and will float pretty easy with that much lift.