The biggest thing about modding an engine is the return on your investment in HP. If you spend $1,000 on cam, rockers, accessories, and only wind up using more gas... How will that make you feel?
You can spend just a little more and sit in a rocket! How will that make you feel?
I hate to bust your bubble, but unless you have a one-of-a-kind 40th GT, its not too valuable to begin with. If it had only 5k miles and was on milk crates in a garage, started every few days to keep the juices going, it would only be worth so much and not as much as you think. LoL
So, if you want my $.02, buy a L67 and swap it in that engine bay, mod it to hell with a nice built tranny and have some fun. You can take out and store your precious stock original engine and PCM to sell some day. Cam to just say you have a cam is counterintuitive!
: )
remember the golden rules...
#1 - you gotta pay if you wanna play!
#2 - FAST/CHEAP/RELIABLE - you can only have two at any one time, choose wisely!