I did loosen the accelorator pumps because they were to tight. My neighbor suggested jetting up originally but I put 70's back in from the 76's he suggested. accelorator pumps are new. I was told by the Holley tech line to go half the vacuum read for the power valve. I started with a 6.5, then a 3.5 and now a 2.5. I have another metering block to try so if that doesn't work I'll try a bigger carb. That was also suggested to me as well. Thanks for the input!!!!!