[madmaxx]

Thanks for the explanation, for some reason I thought they did but I guess with fuel injection some timing covers are not set up for it besides the cam needing an ecentric. I had a holley blue and it was louder than the cooling fans!!! Lost prime below 1/4 tank if it sat for over a week and the genious that mounted the fuel pump regulator on the firewall did not get it level which drove me nuts, although no fault of the fuel pump.