That IS a significant discount. Thanks for the tip. I did look at the e-bay listing and noticed it's rated for 590 cfm. The Holley unit is rated at 670 cfm. Apples and Oranges??? IDK.
https://www.holley.com/products/fuel_systems/fuel_injection/throttle_bodies/gm_throttle_bodies/parts/502-6
$731.95 at Summit. This is what I have in mind.
I have a 1987 R10 with the factory 305 TBI and 700R4. I'd like to do an easy swap to a L05 or L31. Do I need a new ECU from a 350 vehicle? Also Holley makes an aftermarket TBI rated at 670 CFM that seems like a worthwhile upgrade. I plan to get a donor block, have it machined, and add a cam...