Howdy to all. I am your typical middle aged guy who wants to breath life back into a car he has held on to for years. I have a 1989 Iroc Z28 with the 305, 5 speed and T-tops. Of course raising a family and feeding my desire for horsepower ain't always financially possible, the old girl has had to sit in the shop for awhile. I do have a question about the 305. By what I understand, the TPI system was designed for the 305 and was a weak-link when applied to a 350, but I would like to put a 350 into her and get more horses (plus it seems easier to find aftermarket parts for the 350). I am going to rebuild the 305, wrap it in a baggie and store it as a backup. Is it possible to just remove and replace (R&R) the 350 for the 305? I imagine as I progress with the build I will be consulting with some of the more experienced motorheads here on this forum. All advice would be appreciated.