Your TA block can be either on or off center I would make sure before buying an intake. If you are using TA heads they will be production style and not Stage 2. Champion makes a cast intake that works great and will fit great. They can be ordered for on or off center blocks. I would have whoever is building you motor order the intake. The TA head can have several port configurations and sizes and you want to make sure the the intake alignment will be correct. If TA is doing your head work you should be able to order the intake directly from them. If not have you head porter call Champion or one of thier dealers which there are several of on this board. If you are deadset on a sheetmetal I would contact Wilson and have one made but it won't be cheap and it most likely will not perform any better than the cast one Champion sells.