How much power with my swap?
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04-18-2013, 03:46 PM
Menzel Lake, WA
06 Red Ltd.Wagon
20g-xtr 430/413 JJtuned
The same mods on an EJ255 vs. a 257 will yield virtually identical numbers.
The heads have different chambering, and I've heard said the 257 heads
be good for a little more tq. But nothing significant.
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