Fuel pump too small?
Hi everyone, my first post on the forum. I have a 1971 mercury cyclone that I just finished building. She has a 351 Cleveland with a comp cams 284h camshaft, trick flow heads, headers, Weiand intake, a street demon carb, pentronix ignition, stock mechanical fuel pump. She starts up OK and when the car is not under load will rev up. Once she’s in gear if I put the throttle down she sputters and doesn’t really go anywhere. The only thing I can figure is that she’s not getting enough fuel under WOT. Does this seem like it’s the problem but does anyone have any other suggestions?
Thank you, Rick