Sputter off the line

[jkinsie]

I did a top end rebuild on my 1979 corvette L48 and now I have a small sputter when I put my foot to the floor fast. If I ease onto the gas quick I usually don't get it. See below what I changed:

Edlebrock E-Street 70cc heads (wish I would have got the 64cc)
Holley 670 AL street avenger carb
Edlebrock performer plus cam
Edlebrock performer rpm intake
Crane energizer AL rockers
Crane timing chain
headers (1 5/8")
Edlebrock Elite series tall valve covers and air cleaner

I have put larger accelerator pump discharge nozzel in the carb, but did not make much difference. Anyone have an idea of what I can try to eliminate this?

Thanks,

 

[Manny@Dasilva]

I did a top end rebuild on my 1979 corvette L48 and now I have a small sputter when I put my foot to the floor fast. If I ease onto the gas quick I usually don't get it. See below what I changed:

Edlebrock E-Street 70cc heads (wish I would have got the 64cc)
Holley 670 AL street avenger carb
Edlebrock performer plus cam
Edlebrock performer rpm intake
Crane energizer AL rockers
Crane timing chain
headers (1 5/8")
Edlebrock Elite series tall valve covers and air cleaner

I have put larger accelerator pump discharge nozzel in the carb, but did not make much difference. Anyone have an idea of what I can try to eliminate this?

Thanks,

Sounds like a combination of timing and carb jetting . Check you timing as well as the jet size . Too much fuel or timing .