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rpm issue with 390.

5K views 3 replies 3 participants last post by  BuzzLOL 
#1 ·
hello new here. got a question for u guys if anyone knows 390 really good i would appreciate the help. i have a 67 390 with 406 big port heads medium riser intake and also big port. a crane fireball 2 296 cam in it and headers on. i am running it in my mud drag truck. it has a 3000 tci stall in too. the issue i am having it that around 3000 it doesnt want to make more rpms. i have a base edelbrock 600 on it. i am thinking its to small of a carb but not sure. if anyone has ideas i would love to hear them. thank u.
 
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