Looking for some guidance and a "what would you do" scenario. Basically I've got a late modle 01 with the bolt ons and stock PI heads. Currently at 102k and 12 years old, engine has had #2 plug blown out twice, but hasn't in over 15k (knock on wood) passenger valve train is making some noise nothing too noisey but sounds like some lash. Engine hasn't had timingchain or guides done yet. Still runs strong and smooth Obviously I want my dollar to go as far as it can. I would love to go F/I later down the road but a 12 year old 100,000+mile engine that's had a plug blown out twice makes me nervous. So I was looking at the trickflow heads and a mild cam which will cost around $3000. And thennnn I saw the crate motor (looking at MMR) a long block for under $5000 all forged and built to what ever spec you want.