Well let me tell you my experience with Hedman over a set of 1 3/4" round ports. Went to test fit them and both sides had the back tube hit the firewall so they could never fit. The flange was 1/2" off the head at one end and flush at the other.Called then sent them back on my nickle. They called and said they fit the jig so "I must have moved the motor back in the car"(I'm original owner!)Oh and flanges were "within limits". I even sent pictures of mock up to change tubes , they wouldn't do it!Bascially they didn't fit the correct application and a way off flange and tough luck. We changed two tubes ourselves and they fit great.
Second set of Hedman's that had a collector hitting transmission it was pointed in so much they did fix for free.
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune [email protected]
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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