Quote:
Originally Posted by joes455
Put a carb on so you can tune it,Raise total timing to 38.I gains 50hp going from 32 -38.Most hei distributors will loose almost 4° of timing at 5000 to 6000 rpm.Also the 340 cfm is way too much I'm going through the same **** with my 340 cfm heads and a old faithful cam.Get rid of the NW and install one of the street dominator copies.Im porting a 6x-4 head to 275cfm and when installed will outperform that 340 head I have now
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Im not sure the 6x will out perform the edelbrocks