- Joined
- Oct 10, 2010
- Messages
- 255
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- 1,601
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- shreveport louisiana
- Vehicle Year
- 91
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- Automatic
Well if you are going full hydro you won't have that issue haha. Not sure about the firewall, you probably will have to massage it with a hammer. Fullsizebronco forums has a sticky thread about speed density friendly cams.
And I forgot to mention, gt40 heads are a common swap, just don't get the gt40p heads with the angled spark plugs
Whats the difference in the gt40 heads with angle spark plugs? Just for my knowledge

