I have a 79 K5 with a 350sbc. I bought it with just the short block in it but had some 74 vintage heads to put on it. It is a carbed engine. All the engine rebuild kits I'm finding are for either pre 86 or later engines, is this just due to the fuel injection systems being on the later motors? Basically I need to know if I can just use a rebuild set for the older pre 86 engines on my block and be fine since mine is carbed. Please pardon the probably dumb question!