[joe_padavano]

I know that funds are always an issue, but given the effort you're going through to get more HP, why do you want to restrict the motor with the small block manifolds. If this is a temporary thing until you can afford W/Z manifolds, fine. The only problem is that the factory manifolds are designed so that the exhaust pipe flanges are in the same place with each motor. In other words, if you use a small block manifold on a big block the pipe flange will be higher than normal due to the taller deck height. Just something to consider.