everyone thinks there just 5 behind jeff but it's probably more.

 

is that true though??

 

Are dual 39's enough for the flow the new heads and cams can flow ?

 

I was also told a 4 HP to 5 HP gain also depending on your cams, and porting and valves <--Just got one! im taking it to woods to get the aluminum front part pressed on and readjust the pumper and jetting, RWR is telling me that you need a manifold or can you just open up the stock intake??

 

Open the stock up. I ran the dual FCRs (39s) and the dual Lectron (40s). I run the TM45, 48, Lectron46 and 48. To me I like the TM48 the best. I took my 760 to the river and had it running good with the FCRs on it. I was running some triple buff 25s and couldnt launch in second but went to the truck and bolted on the TM45 and I could easily lauch in second but it would fall off in power alot sooner than the duals. Those duals just pulled on top. I liked the Lectrons better but the TM48 gave me soooooo much more low end. In 300ft drags if you got no low end you wont win. Love the TM48

 

Meaner. . . that's probably why I love the FCR's so much. Sand Mt. is a nice long pull. 300' wouldn't even get you out of the whoops on that hill.

Well said!

I had the TM45 on the old build but, can't honestly say I've tried anything other than the FCR's on this build.