cjc Posted April 6, 2012 Report Posted April 6, 2012 Im not sure what brand intake you have ,but our heavly ported 370 with a 35 pwk has 180 main 48 pilot with a gradon type 2-1 at sea level. you may be lean at 3/4- full throttle , and a little rich on the pilot and on your needle . and the above poster was correct the needle is very critical on the 2-1 !! Quote
EvilBanshee Posted April 6, 2012 Report Posted April 6, 2012 try a new set of plugs. And switch the plug wires around. See if the plugs look the same in each cyclinder. If they havent changed sides. Its not electrical. Could be a cracked intake or you have a vacume leak somewhere. 10psi difference should be that much of a difference in how it runs and how the plugs look. Quote
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