the car doesnt start anymore, it make a hollow sound when it fires and flames come out of my headers. Whats up with that i havnt run the car on the road yet i just started it and drove it 2 feet out of my garage. i set the timing like 12 times total and now i believe its perfect. whats causing this, no back pressure?

 

Distributor isn't firing on the correct cylinder or cam isn't timed correctly to the crank.

It's possible you have the distributor 180 degrees out. Pull the #1 plug and bump the engine over until you feel the compression coming out. Look down at the timing mark on the balancer. It should be resonably close. Now pull the distributor cap off and look at the rotor. Is it pointing at the #1 plug wire or #6?

Since you say the engine was running, another posibility is that the distributor gear has moved. It's only held on with a simple roll (spring) pin. If the pin broke, there's just enough friction to hold the gear to the shaft however it can still turn and through out your timing.

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87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block (times are for the current engine)

Best ET on a time slip: 11.447 altitude corrected to 10.99
Best MPH on a time slip: 119.42 altitude corrected to 124.86
Altitude corrected rear wheel HP: 493
Best 60 foot: 1.586

Racing at 3500 feet elevation with a typical race day over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley