Quote:
Originally Posted by er455
After market block ?? I am at 12 # on a cast 455 block with iron heads on E-85 looking to turn in up around 20 -25 # with 23 degrees ...
|
At what compression ratio? Even with E85 you want to be conservative. 8.5:1 range is plenty.
Intake charge temp will also affect amount of boost and timing you can run.
Highly suggest you run a very good intercooler or at a minimum water/methanol injection.
Agree with Tom on timing. CONSERVATIVE !
Watch your rpms too. The stock blocks/cranks that seem to hold together longest are keeping revs low( under 6k).