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Old 12-27-2012, 07:58 PM   #250
Maxwell Power
Former Vendor
 
Member#: 190729
Join Date: Oct 2008
Chapter/Region: NWIC
Location: Marysville, WA
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Quote:
Originally Posted by manitou View Post

All Supertech valve train w/ dual springs. Junior had boost at 21 psi/ 93 & 26 psi/ E85.

Good to 8k?

I went with D25s for the OB response and torque vs. higher revs of the B25 heads. My heads do breath very well!
The d25 head has a faster burning chamber than the b25. So in theory it can make more power at higher rpm provided you don't go crazy with the timing.
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