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Mart Jeltema · 09-09-2010, 02:06 PM

Mike Taylor is correct. If the average is better, then look at the jetting. When my Brake Specific # looked good on the dyno and didn't perform on the race track thats where I head. I have found on a car with a hood scoop needed to increase the jet size. On my single carb 750 I had to increase the jets 3-4 #'s.

09-09-2010, 02:06 PM	#14
Mart Jeltema Junior Member Join Date: Feb 2007 Posts: 37 Likes: 0 Liked 10 Times in 2 Posts	Re: cranking compression Mike Taylor is correct. If the average is better, then look at the jetting. When my Brake Specific # looked good on the dyno and didn't perform on the race track thats where I head. I have found on a car with a hood scoop needed to increase the jet size. On my single carb 750 I had to increase the jets 3-4 #'s.