someone jammed a pre 82 block and heads[ because the dip stick is on opp side}under the edelbrock intake{tbi] of my new 90 sub.It works for now but for me to tweak and so forth i need to id the block and heads.the person that did this blocked exhaust passages that i need for emissions testing not to mention that pesky check light always on! Are there any markings i can look for to i d the year?