John,
I have a set of Freedom Cycle True Duals with no holes for the sensor bungs.
What size holes should I have drilled and Tapped for your sensors?
Also, besides being 4" back from the header, ideally where should the sensor bungs be oriented on the pipes?
Also what is the price for the most recent set up. Presntly using an HD SERT c/w with custom map.
Engine is JIMs 120 reworked SBC Vortec Heads, S&S 640 G Cams, rest engine stock, V&H Pro Pipe, soon to change to the Freedom Cycle True Duals which I already have, no bungs. HD 6 Speed.
Tune & Dyno last June, 131 HP and 134 ft. lbs. TQ, have over 10,000 mile since, runs great in city and highway, gets 45 - 48 mpg.
I am using the Kurayakyn 57 mm TB c/w 6.33 injectors. THE DAWG (DCFIREMAN) commented that you use your 54 mm TB as the max size for mapping, he was going to check re usage with the 57 MM TB.
Thanks,
geezerglide