Quote:
Originally Posted by M&M Motorsports
It looks like maybe more than one thing.
Fuel delivery is a possibility. Make sure regulator and line to carb are ahead of carb. Check float level and pressure. If you run higher pressure like 7 or 7 1/2, I would try a float setting of .425. Also make sure fuel isn't coming out of vent tube at launch. ( 90 degree spark plug boot facing forward on vent tube should take care of this)
As far as shift point , some transmissions will " lag" as much as 700 RPM. Just set accordingly.
These kind of things will give you fits. Hang in there!
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Regulator is a foot forward of the carb.Run 6 1/2 psi. Float is set at .250, have ran this on numerous carbs and no issue. May want to try .425. Always use the spark plug boot. I agree it is blowing past the shift point setting. Thanks for the input and anything else you can add.