I have a 86 mustang 5.0 and I have it tore down to get the block bored 30 over and new pistons put in ...I also will be installing gt40 heads but my question is when I do that and in stall a new cam by comp will I need to replace the stock pushrods and rockers that I have already from the 86 motor ,also do I need to replacethe roller lifters too.....


mike