Quote:
Originally Posted by BruceWilkie
Who's wideport was it then? I didn't memorize it. Std Butler wideport vs STD cv1?
Regardless the cv1 made more power.
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87 cc E-head converted by Butler to their CNC wideport and then touched up by Knowlton.... starting out life as an 87 cc head, definitely would've held them back a few horsepower compared to a 72cc head. Interesting read though. I believe all involved tried their best.