w8less

you have a 347?

AdderMk2

G-tech meter... proven to be INCREDIBLY UN-reliable...

your butt-dyno is about as accurate There is NO way your making 360hp with 170cc heads on a 347... ESPECIALLY with a B-cam

67mustang302

+1 to both

G-Techs are ridiculously WAY over optimistic, and a 170 headed 347 isn't really gonna make any more power than a 302, just at a lower rpm with better low-mid range torque.

NoGo95GT

I use my G-Tech every time at the track so I can measure my 0-30, 60, 70, 80, etc. The funny thing is, it has always been pretty accurate for me. Usually, the main problem it has is the finishing trap speed. It always will read high. When I ran my 7.57, it clocked me at 7.60. However, for the OP, I do not think he ran a 12.xx@119 with that 347 and crap parts. We'll see when he posts the vid

JD1969

At the track the g techs are usually pretty close, but on the street they are usually way off. The street is not prepped, not level, and the way the gtech finds trap speed is not the same way that it is figured at the track.

mjr46

best thing you can do OP is run it at the track and please DO update the thread when you do so we can see what it does, that we we know what a 347 with such a build does

roostracing

where the guy at? Hasnt posted up...

projectresto83

I wonder why.

mjr46

you guys hurt his feelings!!!

JD1969

I seem to be good at that ^