Have you tried to tweak the timming up just a bit?
another thing to look at is ,Does the carb squirt fuel The second you touch the gas. If Not then This may very well be your short dead spot off line. If your still running the stock Cam Yes Bumping that up Will also Give you some MORE Getty up and Go But so will a rear gear Change If Your running the Stock 3:08s chevy so Loved.
And Your Welcome. :)Glad that we could Help


Larry/Twisted6
[oooooo] smile
Adding CFM adds boost smile
shocked God doesn't like ugly.