very little difference from going from a 1.7 to a 1.75. For most the difference is so little that if one already had a set of 1.7s It would not be worth the money to turn around and buy a 1.75.
As for me tring or running a 1.8 no i haven't
With this new cam I'm running a 1.73 rocker and the push rods in this new motor are like 10 3/8 inch long.(what they call a 10.400)
and with a 690/681 lift I'm pushing things because i didn't want to get into a 700 lift.So I dout very much if i'll even think about let alone try a 1.8 rocker at this point. I really do not want to have to go with a two peice push rod.I have both stock dia. and a 3/8 push rods JUST ? incase the stock dia. doesn't hold up.
God doesn't like ugly.
