Hi everyone so I have some questions. I want to rebuild the TBI 350 in my truck. Reason being the engine has 306,000 miles on it and I started noticing that I am losing power and it doesn't seem to have the get up and go that it used to. After some diagnosis and compression testing I figured out that I have one cylinder thats low on compression (110 psi) while all the others are high (130 to 140 psi) and I have come to find that I think the bad cylinder has a bad intake valve. I have been told that if I'm going to replace 1 valve I better replace them all and if I'm doing that I might as well rebuild the whole motor. So first off let me tell you what I want. Its going to be a daily driver but I want it to go kinda fast but not super speed but also have some decent torque so I can do some towing still if needed but also have decent fuel mileage. I want to get the engine bored to a 355 and put a cam in it, nothing outrageous and people keep telling me about an rv cam and they are decent cams. I am also wondering that if I bore it if it will run with the automatic timing. I also know that these TBI 350's can't run with super big cams because of the automatic timing (sorry for the incorrect term if it is, thats just what it sounds like to me.) I have also heard that the swirl port heads on these engines are garbage so I was thinking about going to the scrap yard and trying to find a set of vortec heads and use those if they aren't damaged and have them machined when I get the block machined and bored. So now begins my questions after boring you with the descriptions of what I want. What should I do? How should I start? What more information can you give me? What parts should I buy? Also I haven't started anything the motor is still in the truck and it's still running decent minus the lack of power stated previously. Could you guys help me out I want this truck to keep going and she has been a good solid and reliable truck and I just want to put some pep back in her step. Thanks everyone any other questions you have just ask and I will try to answer them the best I can as quick as possible. Thanks again!!!