Hello everyone I need some help and Im hoping someone out there with sum engine knowledge can help me. I bought a 86 buick regal two years ago and it had a 307 olds motor in it. after the motor blew i searched for another motor, and was told to go with a chevy 350. So I found a sbc 350 on craigslist for 1200.. The guy told me it was a rebuilt motor out of a 71 camero pushing about 350 horsepower.. Me being young and not knowing any better took his words and ran with it. I put it in with a 700r4 tranny behind it 650 edlebrock carb shorty headers dual exhaust edlebrock preformer intake and installed a 480 lift lunati camshaft. It runs good but it aint no damn 350 horsepower lol. So I ran the block casting number and "3970044 " and couldnt find anything on it.. So i called the chevy dealer ship and they told me the motor is out of a 73 malibu. I looked up the specs and it was like a 146 to 165 horsepower 350 motor.... I was like WHAT!!! Well to be honest it feels more than 165, maybe 200 after the headers exhaust intake and carb... I been thinking about buying some aftermarket heads maybe vortec. Can someone please tell me if I will see a change if I get these heads. I already have a 373 8.5 rear under the car.. If I decide to go aftermarker could I use the same pistons? Will i have to bore the motor? how can I tell if Its really been rebuilt? I just want about 350 horses. Can someone tell me about this block? Someone please help me I will glady appreciate it. Cause i only have 1500 bucks and need to know which way to go... thank you
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