Join Date: Dec 2002
Location: Fairfield, OH, USA
I pulled my original DZ carb because I was in need of some replacement parts. I put on a Holley 650 DP (List# 4777-3) "temporarily" and it runs great with it. It runs so great that I'm not in any hurry to put the origanal back on. I'm guessing that the original 780 vac sec carb might be a bit better when it comes to fuel economy, but I like the throttle respone of the 650 DP.
I will say that I did't really get to run my car but a few times with it's original carb, because the carb was on the brink when I bought the car. So I can't really provide an accurate comparison between the two carbs. I think the 650 DP is more than adequate for the 302. I've had mine spun up very close to 7000 RPM and it was not starving the least bit for fuel.