Gas in the oil and in the exhaust

Hi i just recently bought a 1993 chevy blazer 4x4. it has the 4.3 vortec with the cpi. there is gas in the oil and gas in the exhaust..what could the problem be??

Spider type fuel delivery inside upper intake known to leak , and with repeated attempts to start , fuel gets into wherever gravity will allow , be sure to drain fuel soaked oil before attempt to start after repair and because fuel is in the exhaust , it might blow the muffler and melt the catalytic converter

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