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Messages - Tunnelport427

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FE Technical Forum / Re: Overheating 427
« on: February 11, 2026, 02:23:51 PM »
The distributor is Billet MSD, no vacum advance. I am running 98 octane which equivalent to your 93.
The TDC pointer is correct.

2
FE Technical Forum / Re: Overheating 427
« on: February 09, 2026, 07:33:08 PM »
Will check timing, but think it was 37 degrees all in. It runs hot at both idle and on the road. I am running a 35 gph electric water pump.
I went to an alloy radiator as it is the same size as the old copper one , but way more tubes.

3
FE Technical Forum / Overheating 427
« on: February 09, 2026, 04:36:47 PM »
Wondering if anyone can help with info. I have a 67 Mustang with a Tunnelport 427, headers, cam, injection. It runs about 210 degrees, have seen a high of 219.
Electric 35 gph pump, spal 2024 puller fan, fabricated shroud, alloy radiator, (copy of the original copper one).
Running a thermostats makes it worse.
Fan is set to come on at 185 degrees.
I am scratching my head here, do I try a larger capacity water pump, larger radiator?
Any help appreciated.
Thanks
Rodney

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