for most competitive pricing I always shop
www.Classicparts.com (Formerly Chevy Duty)
They used to just be chevy trucks, but now they are expanding into novas, camaros, and even 30's chevys. they almost always beat LMC Pricing, but might not have quite the extensive catalog selection. Great place though, im ashamed at how many thousands of dollars they have received from me.......
For me, they always email me promotions and that helps, plus being out of state (Kansas I think) no sales tax and very fair shipping costs...