Need opinions here...Inatake manifold upgrade... again???

[craigwhite89gt]

Ok Let me tell you my setup ..

306 w/ SRP Pistons stock crank and rods
Strike force Alum. heads 200CC 2.05/ 1.6
F- Cam
1.6 RR
ARP bolts - and a girdle

As of right now im running a 70MM TB with Trickflow Street intake..
I was considering the Track heat .. with a bigger TB?? Or the Trickflow Box setup... Anyone upgraded to these? Big diff? .. Will it be worth upgrading for Boost...

I wanna hit 12s all motor w/out slicks
I ran 13.2 @107 as of right now-- Full weight GT

 

[craigwhite89gt]

TTT

 

[craigwhite89gt]

TTT one more time.. damnit

 

[Grn92LX]

You don't need to change the manifold for 12's.

Put a drag radial on it. What gears do you have?

 

[joncash]

He's got a point there. Whatever you do, a box-type intake w/ a 306 will make you hate your car on the street. Keep away from that one unless it's a weekend car w/ a lot of gear.

 

[jjd975]

You have the MPH now, your problem is in your suspension/traction.

 

[craigwhite89gt]

I know im ihave MPH for 12s if i had my drag radials on but im waiting on that until i build up my rear a lil more... Im running 3.73s ... Whats the deal with the Box type? Is it all jus like power past 4k?? I wanna hit close to 110mph on my street tires in the 1/4 ..

 

[joncash]

Yeah, pretty much...maybe little higher depending on the rest of the combination. Point is, the manifold you have will do its job just fine across the RPM range you're working in.

 

[vristang]

When I put the Comp Cams upper on my original 302 with a Cobra lower, the power didn't hit until 3,500rpm. Below that the car was a dog. Above that it was a raped ape.

I was running 3.27 gears at the time, and the sound system adds a couple of hundred lbs to the car.

With the same gears, weight, and upper manifold on a 408w and Lightning lower (basically the same as the 302 cobra), the car is much more drivable.

My thoughts,
jason

 

[joncash]

A bigger motor is also a good fix to the torque problem .