I can tell you that when I rebuild my 396/325 I just changed the cam to a RV cam, had the original heads cleaned up and had the original quaderjet gone through and a Corvette aluminum intake and added headers and it made 410 hp and 454 torque @ 3200 rpm for torque on the engine Dyno. Also a stock HEI GM ignition.
The intake was a 427/390 out of 69 so I had to put a riser on for the linkage to work.
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Ric Beckman
1969 Chevelle SS396
1972 Camaro SS350
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