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Now that I've gotten your attention:
Which is the best head for a street B20 with twin SU carbs?
I know of a salvage yard that has 1975, 1971, 1974 and 1972
B20 motors. All are FI motors, and seem to be in okay condition.
Which would be best for use on a carbed B20 with D grind cam?
To my knowledge:
* early FI flow best and have high compression, but have normal
un-hardened valve seats
* later FI have more restricted flow
* last FI have hardened valve seats (is this only on cars with
factory cat or on all cars?) but lower compression and lower
flow.
suggestions?
chris
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