I got a set to use on my test stand. I could not get all the bolts started on either side till I oversized a few of the holes.
Yes the outer tubes especially on E heads, but then Ron's early Tri Ys were tight on E heads but OK on iron round ports.
Those really bad Hedmans I needed the small tube size so I cut off 2 tubes, used paper towel rolls to mock up bends , cut off collectors and welded it all back together. The 400 liked them compare to the 2" Hookers and you could get to all the bolts easily with my tubes!. I'll dig them out and take some pictures.
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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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