Yes, I have. 1 weekend at a test and tune along with at street class I changed 6 intakes. On my 1970 340 with the 284/484 purple shaft cam. 67 dart with 1 5/8 headers and 3.91 gears. Factory 340 high stall converter. The Torker 340 was the worst single plane. The Holley street dominator was 2nd. The Weiand Excellerator was the best. The LD340 was the best. The LD4B Was a close 2nd along with the Weiand 7507 I used the stock iron intake as a base line. The same carb was use on all the tests. 750 Carter Competition Series. 6000 rpm redline. It was all pretty much a wash as what the single planes lost on the bottom end the made up on the top end except for the Torker 340. It was almost 2 tenths slower. Kim
