I've read and read and searched and searched and I can't make up my mind. I've ran the Holley S.A. 670 on 2 stock 302's and they both ran good, even though I know they were over carbed with that 670.
On my current 64.5 Mustang, I am trying to figure out which one to go with. Here's my setup.
-Stock 65 289 block
-AFR 165 Aluminum heads
-Comp Cams 268HE cam
-Cobra stage 2 289 intake
-C4 Auto (stock stall)
-Stock rear gears (for now)
Should I go with the 570 or 670 street avenger? The holley website recommends both, and the 80457 600cfm 4160, which I don't care for. I would think the 570 would give better throttle response, I'm just afraid of running out of steam with the AFR heads and cam.
Please give me a recommendation based on experience and carburetor expertise, not just because you've had one or the other. Thanks
On my current 64.5 Mustang, I am trying to figure out which one to go with. Here's my setup.
-Stock 65 289 block
-AFR 165 Aluminum heads
-Comp Cams 268HE cam
-Cobra stage 2 289 intake
-C4 Auto (stock stall)
-Stock rear gears (for now)
Should I go with the 570 or 670 street avenger? The holley website recommends both, and the 80457 600cfm 4160, which I don't care for. I would think the 570 would give better throttle response, I'm just afraid of running out of steam with the AFR heads and cam.
Please give me a recommendation based on experience and carburetor expertise, not just because you've had one or the other. Thanks