1977 Other Oldsmobile Models sarting issue

1977 OLDSMOBILE
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EKESTLER
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Engine Mechanical problem
1977 Other Oldsmobile Models V8 Two Wheel Drive Automatic
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I recently replaced an ailing 403 Olds engine with a reman long block. I finished all the details and yesterday I was ready to start the car. I get backfire if I throttle the carb, but I get no response. I checked that I had spark and do...I reset the rotor on ignition to make sure it was set...but I still don't get a start...not really even a hint that it wants to fire except for the backfire i get if I give it gas...?? What is left to check? Could the intake be leaking by and allowing exhaust back into intake port? This is all on a 1946 street cruiser that I want to get back into circulation...[img:eb7629b5bd]http://www.2carpros.com/forum/automotive_pictures/218424_P4270003_1.jpg[/img:eb7629b5bd]
Jul 25, 2008 at 1:28 PM
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RASMATAZ
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Recheck the firing order and ignition timing-the backfire is it an intake or an exhaust backfire?
Jul 25, 2008 at 1:36 PM
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EKESTLER
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it was a intake backfire...I changed the distributor 180 out and the car started...Thanks for your help!!
Jul 27, 2008 at 12:04 PM
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