thinking of putting a 4 inch crank in a 318 magnum,not really building it to race would just like too have the extra tourque,not a big cam or fancy heads,or anything like that,it's a 95 truck obdI,will that work?will the performance computer compensate for the bigger cubic inches or not,i have heard no that u have to upgrade too obdII,just looking for advice from someone who has already done it,thanks already