I have a 94 hertiage with a screamin eagle high flow air kit, slash cut pipes, just fitted a ev3 cam and looking at fitting  thunder jet kit to the carby.(standard cv carb on bike) Has anybody had one fitted and was it any good.

Cheers Keg

Thanks Scotty for the comments, I've been told a Jost power tube are good, have you had anything to do with them or  has anyone else. As you have said the stock carby with the mods, would it be a good idea to have it set up on a dyno tune.

Cheers Keg

The road goes on forever but the party never ends.

Thanks for the reply Wozza, Coupler years ago i had  a FLH ( I think) with 2 blokes on it weighting around 130KG each, towing a trailer full with 2 swags,clothes,tent & esky full of beer ,past me so I followed them into the next town average speed of 150km/h, at the servo he put in a litre more fuel than me(we had both filled at the same town previsely) he told me that he had a yost power tube fitted. It's good to hear that you are happy with yours.I will have a look at the link you sent me 2

Regards Keg

Scotty, Thanks for your reply, Will take what you have  said on board when I make up which way to go and i will have a look at the link you attached. From what I have seen on this site you have got the knowlegde.

Regards Keg

The road goes on forever & the party never ends

I have two thunderjets fitted to an S&S super "G" and they work exceptionally well.

A stock 124 cube S&S twin cam is supposed to put out 129 HP. A week after fitting with 2000klms it ran 142 rear wheel hp on a dynojet dyno.

I wouldn't run anything else, and never had any trouble with carby.

I've fitted one to my FXDX, and with a bit of carefull jetting I managed to eliminate an anoying backfire on over run that the local harley dealer could not eradicate.

It's like most things, it may be the best for one application but there may be a better solution for other bikes.

I fited one to the gold bobber with the genny shovel, was a good thing, had noticeable mid range improvement and over all a better thing to ride!