Hey guys need some advice I have a 1972 Monte Carlo with small block 350 and Edelbrock carb. For some reason when I want to give it the sauce it just decides to not accelerate and instead makes like a thumping sound. Also at times the Gas Pedal will click back or make a clicking sound when I gas it. Any ideas what it might be? Is it vacuum leak or tranny? I also find oil around my middle intake manifold bolts at times if that means anything? Thanks for the help