i agree to support local first, but if your gonna buy jegs or summit both are good. one thing to remember is you don't pay sales tax on mail order unless the business is in your state. think that's not much try buying a block, heads, intake, pistons, ect and take 7% or more off. it does add up. I live in Ga so i by a lot of parts from jegs because summit has a store in Ga. Both charge a flat $10 shipping fee no matter if it's a $20 order or $2,000 order. As far as customer service, both are good and i have sent plenty of items back. BUT PLEASE SUPPORT YOUR LOCAL SHOP BECAUSE HE PROBABLY HAS THE EXPERIENCE TO INSTALL WHAT HE SELLS AND WILL HELP YOU IF YOU NEED HIM!!!