OK, I'll try to answer your question. Yes the vortec heads are a nice performance upgrade from the stock heads and you can get a pair of new complete heads for under a grand. If you are going to use truck heads try to fing the later 062 castings, their flow is a little better. As for cams I've been working with Lunati on my 350 build im doing and they assure me that the voodoo 101 gring wil not revert and will be a nice upgrade from my stock non-magnum engine. Remember to keep the lobe center at 112*-114* or you WILL have issues, most EFI cam grinds keep a 112* centerline, don't go stupid with lift either unless your planning on running some serious RPMs. Intake keep a duel plane I really like the weind Stealth but the RPM Air gap seems to be getting rave reviews. Exhaust manifolds won't help the stock setup much but will help get the most out of any mods you do. Hope this helps

thank you I think some people forget that not everyone can afford a $1000 a month boat payment and if I want nice or fast stuff I have to make it happen myself. right now it runs 65 to 68 and I would really love to break 70

I've been budget building for years even now. world products makes the SR Torquer heads 175cc intakes with a good pocket port and port match they flow pretty good also available with closed chambers to bump your compression a little. not sure of current price. Barr Marine makes a center rise manifold that I've had success with they also make a 4" riser that will fit (it's a big block application that will fit on the small block manifold) if you have thru hull exhaust.