so i need a new top end and was looking into doing power mod at the same time, should i get the 240 sleeve kit and get it re sleeved and how much does the head work cost?, or should i go up to the next over bore and do the 3mm stroker rod. im wondering if i can get it resleeved and head worked for under $100?, i have no idea what actually needs to be done to the hea, does the dome need to be enlarged?