Re: 302 head compatibility
There is probably going to be a slight compression loss, however the better design in the 89 heads is going to flow a little better.
Jester is right on the performance aspect, but I will say that the E7TE's I just took off my car ran very strong for being home ported heads.
Ryan
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65 Fastback 91 roller 306, H/C/I
AOD-Bauman, PI Stallion, 4.10's and traction loc
04 Grand Cherokee Freedom Edition
79 Ford F-250 4x4 - Restored
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